Assessment of Rate and Risk Factors of Child Mortality in Nigeria. KASU JOURNAL OF MATHEMATICAL SCIENCE (Maths Access), [S. l.], v. 2, n. 2, p. Page: 19–29, 2025. Disponível em: https://mathsaccess.org.ng/index.php/kjms/article/view/46. Acesso em: 10 jun. 2026.