<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019fb8e5-a726-7378-89b0-f377df29a542,g:9a12fce6-f90a-4db4-b6f6-cf9d9243ef72-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/netLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd#netLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedNetLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedNetLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTerseLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodEndLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_ck0001027596_InitialPublicOfferingRiskMember_label_en-US" xlink:label="lab_ck0001027596_InitialPublicOfferingRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Initial Public Offering Risk Member</link:label>
    <link:label id="lab_ck0001027596_InitialPublicOfferingRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_InitialPublicOfferingRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Initial Public Offering Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_InitialPublicOfferingRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_InitialPublicOfferingRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_InitialPublicOfferingRiskMember" xlink:to="lab_ck0001027596_InitialPublicOfferingRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_C000225405Member_label_en-US" xlink:label="lab_ck0001027596_C000225405Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Logan Capital Broad Innovative Growth ETF Class</link:label>
    <link:label id="lab_ck0001027596_C000225405Member_documentation_en-US" xlink:label="lab_ck0001027596_C000225405Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Logan Capital Broad Innovative Growth ETF Class, C000225405</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_C000225405Member" xlink:href="ck0001027596-20260828.xsd#ck0001027596_C000225405Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_C000225405Member" xlink:to="lab_ck0001027596_C000225405Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_ETFRisksTradingMember_label_en-US" xlink:label="lab_ck0001027596_ETFRisksTradingMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Trading Member</link:label>
    <link:label id="lab_ck0001027596_ETFRisksTradingMember_documentation_en-US" xlink:label="lab_ck0001027596_ETFRisksTradingMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Trading Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_ETFRisksTradingMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_ETFRisksTradingMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_ETFRisksTradingMember" xlink:to="lab_ck0001027596_ETFRisksTradingMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_EquitySecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001027596_EquitySecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Securities Risk Member</link:label>
    <link:label id="lab_ck0001027596_EquitySecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_EquitySecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_EquitySecuritiesRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_EquitySecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_EquitySecuritiesRiskMember" xlink:to="lab_ck0001027596_EquitySecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_ETFRisksMember_label_en-US" xlink:label="lab_ck0001027596_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:label id="lab_ck0001027596_ETFRisksMember_documentation_en-US" xlink:label="lab_ck0001027596_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_ETFRisksMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_ETFRisksMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_ETFRisksMember" xlink:to="lab_ck0001027596_ETFRisksMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember_label_en-US" xlink:label="lab_ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Member</link:label>
    <link:label id="lab_ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember_documentation_en-US" xlink:label="lab_ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember" xlink:to="lab_ck0001027596_ETFRisksSharesMayTradeAtPricesOtherThanNAVMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_LargeCapCompaniesRiskMember_label_en-US" xlink:label="lab_ck0001027596_LargeCapCompaniesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Large-Cap Companies Risk Member</link:label>
    <link:label id="lab_ck0001027596_LargeCapCompaniesRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_LargeCapCompaniesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Large-Cap Companies Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_LargeCapCompaniesRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_LargeCapCompaniesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_LargeCapCompaniesRiskMember" xlink:to="lab_ck0001027596_LargeCapCompaniesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_label_en-US" xlink:label="lab_ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Russell 1000&#174; Growth Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:label id="lab_ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_documentation_en-US" xlink:label="lab_ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Russell 1000&#174; Growth Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:to="lab_ck0001027596_Russell1000RGrowthTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_GrowthStyleInvestmentRiskMember_label_en-US" xlink:label="lab_ck0001027596_GrowthStyleInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Growth Style Investment Risk Member</link:label>
    <link:label id="lab_ck0001027596_GrowthStyleInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_GrowthStyleInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Growth Style Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_GrowthStyleInvestmentRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_GrowthStyleInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_GrowthStyleInvestmentRiskMember" xlink:to="lab_ck0001027596_GrowthStyleInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember_label_en-US" xlink:label="lab_ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Member</link:label>
    <link:label id="lab_ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember_documentation_en-US" xlink:label="lab_ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember" xlink:to="lab_ck0001027596_ETFRisksCostsOfBuyingOrSellingSharesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_SectorEmphasisRiskMember_label_en-US" xlink:label="lab_ck0001027596_SectorEmphasisRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Emphasis Risk Member</link:label>
    <link:label id="lab_ck0001027596_SectorEmphasisRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_SectorEmphasisRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Emphasis Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_SectorEmphasisRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_SectorEmphasisRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_SectorEmphasisRiskMember" xlink:to="lab_ck0001027596_SectorEmphasisRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_EconomicAndMarketRiskMember_label_en-US" xlink:label="lab_ck0001027596_EconomicAndMarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Economic And Market Risk Member</link:label>
    <link:label id="lab_ck0001027596_EconomicAndMarketRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_EconomicAndMarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Economic And Market Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_EconomicAndMarketRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_EconomicAndMarketRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_EconomicAndMarketRiskMember" xlink:to="lab_ck0001027596_EconomicAndMarketRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_label_en-US" xlink:label="lab_ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Russell 1000&#174; Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:label id="lab_ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember_documentation_en-US" xlink:label="lab_ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Russell 1000&#174; Total Return Index (reflects no deduction for fees, expenses, or taxes)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:to="lab_ck0001027596_Russell1000RTotalReturnIndexreflectsnodeductionforfeesexpensesortaxesIndexMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_label_en-US" xlink:label="lab_ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants, Market Makers And Liquidity Providers Concentration Risk Member</link:label>
    <link:label id="lab_ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Authorized Participants, Market Makers And Liquidity Providers Concentration Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:to="lab_ck0001027596_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_DepositaryReceiptRiskMember_label_en-US" xlink:label="lab_ck0001027596_DepositaryReceiptRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depositary Receipt Risk Member</link:label>
    <link:label id="lab_ck0001027596_DepositaryReceiptRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_DepositaryReceiptRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Depositary Receipt Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_DepositaryReceiptRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_DepositaryReceiptRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_DepositaryReceiptRiskMember" xlink:to="lab_ck0001027596_DepositaryReceiptRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_ManagementRiskMember_label_en-US" xlink:label="lab_ck0001027596_ManagementRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Management Risk Member</link:label>
    <link:label id="lab_ck0001027596_ManagementRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_ManagementRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Management Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_ManagementRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_ManagementRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_ManagementRiskMember" xlink:to="lab_ck0001027596_ManagementRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_S000070990Member_label_en-US" xlink:label="lab_ck0001027596_S000070990Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Logan Capital Broad Innovative Growth ETF</link:label>
    <link:label id="lab_ck0001027596_S000070990Member_documentation_en-US" xlink:label="lab_ck0001027596_S000070990Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Logan Capital Broad Innovative Growth ETF, S000070990</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_S000070990Member" xlink:href="ck0001027596-20260828.xsd#ck0001027596_S000070990Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_S000070990Member" xlink:to="lab_ck0001027596_S000070990Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_EmergingMarketsRiskMember_label_en-US" xlink:label="lab_ck0001027596_EmergingMarketsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Emerging Markets Risk Member</link:label>
    <link:label id="lab_ck0001027596_EmergingMarketsRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_EmergingMarketsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Emerging Markets Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_EmergingMarketsRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_EmergingMarketsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_EmergingMarketsRiskMember" xlink:to="lab_ck0001027596_EmergingMarketsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_ForeignSecuritiesRiskMember_label_en-US" xlink:label="lab_ck0001027596_ForeignSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign Securities Risk Member</link:label>
    <link:label id="lab_ck0001027596_ForeignSecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_ForeignSecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Foreign Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_ForeignSecuritiesRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_ForeignSecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_ForeignSecuritiesRiskMember" xlink:to="lab_ck0001027596_ForeignSecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember_label_en-US" xlink:label="lab_ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Emphasis Risk, Information Technology Sector Risk Member</link:label>
    <link:label id="lab_ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember_documentation_en-US" xlink:label="lab_ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Emphasis Risk, Information Technology Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember" xlink:href="ck0001027596-20260828.xsd#ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember" xlink:to="lab_ck0001027596_SectorEmphasisRiskInformationTechnologySectorRiskMember" xlink:type="arc" order="1"/>
  </link:labelLink>
</link:linkbase>
