Medical News Today. https://www.medicalnewstoday.com/articles/316463.php
Diakses pada 4 Maret 2020WebMD. https://www.webmd.com/baby/guide/pregnancy-tests#1
Diakses pada 4 Maret 2020Mayo Clinic. https://www.mayoclinic.org/healthy-lifestyle/getting-pregnant/in-depth/home-pregnancy-tests/art-20047940
Diakses pada 4 Maret 2020CDC. https://www.cdc.gov/diphtheria/downloads/blood-draw.pdf
Diakses pada 4 Maret 2020