yunita, jasrida. “Health Problem in Life Cycle: Masalah Kesehatan Dalam Siklus Kehidupan”. Jurnal Kesehatan Komunitas 3, no. 4 (December 31, 2017): 127–128. Accessed September 19, 2021. https://jurnal.htp.ac.id/index.php/keskom/article/view/222.