<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by Broadridge Transform (tm) - http://www.broadridge.com -->
<!-- Created: Fri Sep 25 22:43:58 UTC 2026 -->
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    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_CloudflareIncMember_lbl" xml:lang="en-US">Cloudflare Inc [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_CloudflareIncMember" xlink:to="ck0000893730_CloudflareIncMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_CorningIncMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_CorningIncMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_CorningIncMember_lbl" xml:lang="en-US">Corning Inc [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_CorningIncMember" xlink:to="ck0000893730_CorningIncMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_DiamondbackEnergyIncMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_DiamondbackEnergyIncMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_DiamondbackEnergyIncMember_lbl" xml:lang="en-US">Diamondback Energy Inc [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_DiamondbackEnergyIncMember" xlink:to="ck0000893730_DiamondbackEnergyIncMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_DigitalOceanHoldingsIncMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_DigitalOceanHoldingsIncMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_DigitalOceanHoldingsIncMember_lbl" xml:lang="en-US">DigitalOcean Holdings Inc [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_DigitalOceanHoldingsIncMember" xlink:to="ck0000893730_DigitalOceanHoldingsIncMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_DorianLPGLtdMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_DorianLPGLtdMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_DorianLPGLtdMember_lbl" xml:lang="en-US">Dorian LPG Ltd [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_DorianLPGLtdMember" xlink:to="ck0000893730_DorianLPGLtdMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_EntergyCorpMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_EntergyCorpMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_EntergyCorpMember_lbl" xml:lang="en-US">Entergy Corp [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_EntergyCorpMember" xlink:to="ck0000893730_EntergyCorpMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_ExxonMobilCorpMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_ExxonMobilCorpMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_ExxonMobilCorpMember_lbl" xml:lang="en-US">Exxon Mobil Corp [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_ExxonMobilCorpMember" xlink:to="ck0000893730_ExxonMobilCorpMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FannieMaePool5000001012056Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FannieMaePool5000001012056Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FannieMaePool5000001012056Member_lbl" xml:lang="en-US">Fannie Mae Pool, 5.0000% 01/01/2056 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FannieMaePool5000001012056Member" xlink:to="ck0000893730_FannieMaePool5000001012056Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FannieMaePool5000010012050Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FannieMaePool5000010012050Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FannieMaePool5000010012050Member_lbl" xml:lang="en-US">Fannie Mae Pool, 5.0000% 10/01/2050 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FannieMaePool5000010012050Member" xlink:to="ck0000893730_FannieMaePool5000010012050Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FannieMaePool5500030153Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FannieMaePool5500030153Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FannieMaePool5500030153Member_lbl" xml:lang="en-US">Fannie Mae Pool, 5.5000% 03/01/2053 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FannieMaePool5500030153Member" xlink:to="ck0000893730_FannieMaePool5500030153Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FannieMaePool6000120153Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FannieMaePool6000120153Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FannieMaePool6000120153Member_lbl" xml:lang="en-US">Fannie Mae Pool, 6.0000% 12/01/2053 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FannieMaePool6000120153Member" xlink:to="ck0000893730_FannieMaePool6000120153Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FannieMaePoolMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FannieMaePoolMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ck0000893730_FannieMaePoolMember_lbl" xml:lang="en-US">Fannie Mae Pool, 5.0000% 01/01/2056 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FannieMaePoolMember" xlink:to="ck0000893730_FannieMaePoolMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FannieMaeRealEstateMortgageInvestmentConduit5000007252055Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FannieMaeRealEstateMortgageInvestmentConduit5000007252055Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FannieMaeRealEstateMortgageInvestmentConduit5000007252055Member_lbl" xml:lang="en-US">Fannie Mae Real Estate Mortgage Investment Conduit, 5.0000% 07/25/2055 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FannieMaeRealEstateMortgageInvestmentConduit5000007252055Member" xlink:to="ck0000893730_FannieMaeRealEstateMortgageInvestmentConduit5000007252055Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FreddieMacPool5000003012051Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FreddieMacPool5000003012051Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FreddieMacPool5000003012051Member_lbl" xml:lang="en-US">Freddie Mac Pool, 5.0000% 03/01/2051 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FreddieMacPool5000003012051Member" xlink:to="ck0000893730_FreddieMacPool5000003012051Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FreddieMacPool6000007012053Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FreddieMacPool6000007012053Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FreddieMacPool6000007012053Member_lbl" xml:lang="en-US">Freddie Mac Pool, 6.0000% 07/01/2053 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FreddieMacPool6000007012053Member" xlink:to="ck0000893730_FreddieMacPool6000007012053Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FreddieMacPool6000090153Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FreddieMacPool6000090153Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FreddieMacPool6000090153Member_lbl" xml:lang="en-US">Freddie Mac Pool, 5.5000% 12/01/2050 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FreddieMacPool6000090153Member" xlink:to="ck0000893730_FreddieMacPool6000090153Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FreddieMacPoolMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FreddieMacPoolMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ck0000893730_FreddieMacPoolMember_lbl" xml:lang="en-US">Freddie Mac Pool, 5.0000% 03/01/2051 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FreddieMacPoolMember" xlink:to="ck0000893730_FreddieMacPoolMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FreddieMacREMICS6000004252050Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FreddieMacREMICS6000004252050Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FreddieMacREMICS6000004252050Member_lbl" xml:lang="en-US">Freddie Mac REMICS, 6.0000% 04/25/2050 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FreddieMacREMICS6000004252050Member" xlink:to="ck0000893730_FreddieMacREMICS6000004252050Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_FreddieMacRealEstateMortgageInvestmentConduit5000008252051Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_FreddieMacRealEstateMortgageInvestmentConduit5000008252051Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_FreddieMacRealEstateMortgageInvestmentConduit5000008252051Member_lbl" xml:lang="en-US">Freddie Mac Real Estate Mortgage Investment Conduit, 5.0000% 08/25/2051 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_FreddieMacRealEstateMortgageInvestmentConduit5000008252051Member" xlink:to="ck0000893730_FreddieMacRealEstateMortgageInvestmentConduit5000008252051Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GenuinePartsCoMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GenuinePartsCoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GenuinePartsCoMember_lbl" xml:lang="en-US">Genuine Parts Co [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GenuinePartsCoMember" xlink:to="ck0000893730_GenuinePartsCoMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GinnieMaeIIPool5500001202056H15T1Year1500Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GinnieMaeIIPool5500001202056H15T1Year1500Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GinnieMaeIIPool5500001202056H15T1Year1500Member_lbl" xml:lang="en-US">Ginnie Mae II Pool, 5.5000% 01/20/2056 (H15T 1 Year + 1.500%) [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GinnieMaeIIPool5500001202056H15T1Year1500Member" xlink:to="ck0000893730_GinnieMaeIIPool5500001202056H15T1Year1500Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GinnieMaeIIPool6500002202055Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GinnieMaeIIPool6500002202055Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GinnieMaeIIPool6500002202055Member_lbl" xml:lang="en-US">Ginnie Mae II Pool, 6.5000% 02/20/2055 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GinnieMaeIIPool6500002202055Member" xlink:to="ck0000893730_GinnieMaeIIPool6500002202055Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GinnieMaeIIPool7000002202055Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GinnieMaeIIPool7000002202055Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GinnieMaeIIPool7000002202055Member_lbl" xml:lang="en-US">Ginnie Mae II Pool, 7.0000% 02/20/2055 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GinnieMaeIIPool7000002202055Member" xlink:to="ck0000893730_GinnieMaeIIPool7000002202055Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation05752408162067Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GovernmentNationalMortgageAssociation05752408162067Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation05752408162067Member_lbl" xml:lang="en-US">Government National Mortgage Association, 0.57524% 08/16/2067 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GovernmentNationalMortgageAssociation05752408162067Member" xlink:to="ck0000893730_GovernmentNationalMortgageAssociation05752408162067Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation09747812162062Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GovernmentNationalMortgageAssociation09747812162062Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation09747812162062Member_lbl" xml:lang="en-US">Government National Mortgage Association, 0.97478% 12/16/2062 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GovernmentNationalMortgageAssociation09747812162062Member" xlink:to="ck0000893730_GovernmentNationalMortgageAssociation09747812162062Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation09796512162062Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GovernmentNationalMortgageAssociation09796512162062Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation09796512162062Member_lbl" xml:lang="en-US">Government National Mortgage Association, 0.97965% 12/16/2062 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GovernmentNationalMortgageAssociation09796512162062Member" xlink:to="ck0000893730_GovernmentNationalMortgageAssociation09796512162062Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation12017808162063Member" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GovernmentNationalMortgageAssociation12017808162063Member"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_GovernmentNationalMortgageAssociation12017808162063Member_lbl" xml:lang="en-US">Government National Mortgage Association, 1.20382% 08/16/2063 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GovernmentNationalMortgageAssociation12017808162063Member" xlink:to="ck0000893730_GovernmentNationalMortgageAssociation12017808162063Member_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_GovernmentNationalMortgageAssociationMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_GovernmentNationalMortgageAssociationMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="ck0000893730_GovernmentNationalMortgageAssociationMember_lbl" xml:lang="en-US">Government National Mortgage Association, 0.97478% 12/16/2062 [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_GovernmentNationalMortgageAssociationMember" xlink:to="ck0000893730_GovernmentNationalMortgageAssociationMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_HewlettPackardEnterpriseCoMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_HewlettPackardEnterpriseCoMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_HewlettPackardEnterpriseCoMember_lbl" xml:lang="en-US">Hewlett Packard Enterprise Co [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_HewlettPackardEnterpriseCoMember" xlink:to="ck0000893730_HewlettPackardEnterpriseCoMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassAIDIVXWithoutMaximumSalesChargeMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassAIDIVXWithoutMaximumSalesChargeMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassAIDIVXWithoutMaximumSalesChargeMember_lbl" xml:lang="en-US">Integrity Dividend Harvest Fund | Integrity Dividend Harvest Fund, Class A | IDIVX without maximum sales charge [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassAIDIVXWithoutMaximumSalesChargeMember" xlink:to="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassAIDIVXWithoutMaximumSalesChargeMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASP500TRIndexMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASP500TRIndexMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASP500TRIndexMember_lbl" xml:lang="en-US">Integrity Dividend Harvest Fund | Integrity Dividend Harvest Fund, Class A | S&amp;P 500 TR Index [Member]</label>
    <labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASP500TRIndexMember" xlink:to="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASP500TRIndexMember_lbl"/>
    <loc xlink:type="locator" xlink:label="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASPHighYieldDividendAristocratsIndexMember" xlink:href="ck0000893730-20260731.xsd#ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASPHighYieldDividendAristocratsIndexMember"/>
    <label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ck0000893730_IntegrityDividendHarvestFundIntegrityDividendHarvestFundClassASPHighYieldDividendAristocratsIndexMember_lbl" xml:lang="en-US">Integrity Dividend Harvest Fund | Integrity Dividend Harvest Fund, Class A | S&amp;P High Yield Dividend Aristocrats Index [Member]</label>
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