Lusiana, Novita. “Factors Associated With Age of Menarche Junior High School Student PGRI Pekanbaru”. Jurnal kesehatan komunitas (Journal of community health) 2, no. 1 (November 9, 2012): 40–44. Accessed July 3, 2024. https://jurnal.htp.ac.id/index.php/keskom/article/view/42.