Isah, B.Y., M.M. Altine, and S.K. Ahmad. “Thermal Radiation and Variable Pressure Effects on Natural Convective Heat and Mass Transfer Fluid Flow in Porous Medium”. Nigerian Journal of Basic and Applied Sciences 27, no. 1 (May 26, 2020): 48–58. Accessed September 12, 2026. https://www.ajol.info/index.php/njbas/article/view/196229.