Fatunmbi, E. O., and O. J. Fenuga. 2018. “MHD Micropolar Fluid Flow Over a Permeable Stretching Sheet in the Presence of Variable Viscosity and Thermal Conductivity With Soret and Dufour Effects.”. International Journal of Mathematical Sciences and Optimization: Theory and Applications 2017 (April), 211 -32. http://ijmso.unilag.edu.ng/article/view/10.