Healthline. https://www.healthline.com/health/klinefelter-syndrome
Diakses pada 6 Agustus 2020Mayo Clinic. https://www.mayoclinic.org/diseases-conditions/klinefelter-syndrome/symptoms-causes/syc-20353949#:~:text=Klinefelter%20syndrome%20is%20a%20genetic%20condition%20affecting%20males%2C%20and%20it,to%20lower%20production%20of%20testosterone.
Diakses pada 6 Agustus 2020WebMD. https://www.webmd.com/men/klinefelter-syndrome
Diakses pada 6 Agustus 2020