Ramli, Nurlaili, and Eva Purwita Purwita. “Study of Maternal Mortality Risk Factor 2016 in Aceh Province”. International Journal of Social Sciences and Humanities Invention 5, no. 6 (June 30, 2018): 4776–4780. Accessed April 20, 2024. http://valleyinternational.net/index.php/theijsshi/article/view/1299.