Abraham Osogo, N. ., Joash, and R. Obogi. “The Effect of Variable Viscosity on Unsteady Free Convective Fluid Flow over a Stretching Surface in the Presence of Thermal Radiation and Viscous Dissipation”. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE, vol. 7, no. 6, June 2021, pp. 93-102, doi:10.31695/IJASRE.2021.34033.