KHAN, Masood, Asif MUNIR, and Azeem SHAHZAD. 2015. “Boundary Layer Flow and Heat Transfer for a Third Grade Fluid over a Nonlinear Radially Stretching Sheet”. Walailak Journal of Science and Technology (WJST) 14 (2):157-68. https://wjst.wu.ac.th/index.php/wjst/article/view/1777.