Harahap, Asrika Sari, Heru Santosa, and Albiner Siagian. “Association Between Nutritional Status and Age at Menarche”. Journal of Maternal and Child Health 4, no. 5 (September 26, 2019): 325–327. Accessed May 20, 2024. https://thejmch.com/index.php/thejmch/article/view/207.