FAROOQ, A. A., A. M. SIDDIQUI, T. HAROON, and M. A. RANA. “Variational Approach Applied to Study the Lifting of a Non-Newtonian Fluid on a Vertically Moving Belt”. Walailak Journal of Science and Technology (WJST), vol. 11, no. 11, Mar. 2014, pp. 999-1010, https://wjst.wu.ac.th/index.php/wjst/article/view/661.