Tambun, Mastaida. “Infertility Patients Related To Menarche Age and Nutritional Status at Halim Fertility Center Clinic Medan”. Asian Journal of Pharmaceutical Research and Development 10, no. 5 (October 14, 2022): 28–32. Accessed April 24, 2024. https://ajprd.com/index.php/journal/article/view/1179.