Rasool, S., A. Hakeem, H. Shafi, and S. Mufti. “Primary Amenorrhea in Kashmiri Adolescent Females - A Hospital Based Study”. Nepal Journal of Obstetrics and Gynaecology, vol. 5, no. 1, July 2011, pp. 12-16, https://www.nepjol.info/index.php/NJOG/article/view/5054.