FAROOQ, A. A., SIDDIQUI, A. M., HAROON, T., & RANA, M. A. (2014). Variational Approach Applied to Study the Lifting of a Non-Newtonian Fluid on a Vertically Moving Belt. Walailak Journal of Science and Technology (WJST), 11(11), 999–1010. Retrieved from https://wjst.wu.ac.th/index.php/wjst/article/view/661