Dalatu, Paul Inuwa. “The Empirical Analysis of Five Child-Killer Diseases and Under-Five Mortality in Adamawa State, Nigeria : Empirical Analysis of Five Child-Killer Diseases and Under-Five Mortality ”. Sigma&Mu: Journal of Mathematics, Statistics and Data Science, vol. 2, no. 2, Dec. 2024, pp. 10-20, https://journals.balaipublikasi.id/index.php/sigmamu/article/view/204.