MANSOUR, M. A., A. E. S. M. MAHDY, S. E. AHMED, and S. S. MOHAMED. “Entropy Analysis for Unsteady MHD Boundary Layer Flow and Heat Transfer of Casson Fluid over a Stretching Sheet”. Walailak Journal of Science and Technology (WJST), vol. 14, no. 2, Apr. 2016, pp. 169-87, https://wjst.wu.ac.th/index.php/wjst/article/view/1806.