“Analysis flow of second order fluid in a vertical channel with porous wall by using the Homotopy Analysis Method (HAM)”, JMAU, vol. 7, no. 2, pp. 36–48, Dec. 2015, Accessed: Feb. 24, 2026. [Online]. Available: https://journal.mauc.edu.iq/index.php/JMAUC/article/view/142