M. A. Shamaki and K. Rostam, “Factors Affecting Maternal Mortality In Sokoto State, Nigeria: Faktor-faktor yang Mempengaruhi Kematian Semasa Hamil di Negeri Sokoto, Nigeria”, GEOG, vol. 1, no. 2, pp. 59–70, Oct. 2013, Accessed: Apr. 03, 2026. [Online]. Available: https://ejournal.upsi.edu.my/index.php/GEOG/article/view/455