Healthline. https://www.healthline.com/health/scalp-conditions#conditions-by-type
Diakses pada 23 Mei 2019WebMD. https://www.webmd.com/skin-problems-and-treatments/scalp-problems#1
Diakses pada 23 Mei 2019Healthline. https://www.healthline.com/health/scleroderma#symptoms
Diakses pada 31 Mei 2019