Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/sexually-transmitted-diseases-stds/in-depth/std-testing/art-20046019
Diakses pada Mei 2019Centers for Disease Control and Prevention. https://www.cdc.gov/std/tg2015/screening-recommendations.htm
Diakses pada Mei 2019American Sexual Health Association. http://www.ashasexualhealth.org/stdsstis/get-tested/
Diakses pada Mei 2019Centers for Disease Control and Prevention. https://www.cdc.gov/std/tg2015/chancroid.htm
Diakses pada Mei 2019