Odusanya, I. A., and A. E. Akinlo. “Income Inequality and Population Health in Sub-Saharan Africa: A Test of Income Inequality-Health Hypothesis”. Journal of Population and Social Studies [JPSS], Vol. 29, no. -, Jan. 2021, pp. 235 -4, https://so03.tci-thaijo.org/index.php/jpss/article/view/242032.