Amin, Soma, and Shokhan H. Azeez. “Gingival Pigmentation Pattern in Correlation to Skin Color in a Group of Kurdish People in Sulaimani City”. AL-Kindy College Medical Journal 18, no. 3 (December 31, 2022): 237–242. Accessed May 2, 2024. https://jkmc.uobaghdad.edu.iq/index.php/MEDICAL/article/view/874.