UMAR, Y. H.; MOHAMMED, T. Analysis of Mortality Rate in Nigeria. The International Journal of Science & Technoledge, [S. l.], v. 4, n. 11, 2016. Disponível em: http://internationaljournalcorner.com/index.php/theijst/article/view/124045. Acesso em: 17 jul. 2024.