Siddiqui, A. M., Q. A. Azim, A. Ashraf, and Q. K. Ghori. “Homotopy Perturbation Solution for Peristaltic Flow of a Third Order Fluid”. Topological Methods in Nonlinear Analysis 31, no. 2 (June 1, 2008): 331–339. Accessed July 22, 2024. https://apcz.umk.pl/TMNA/article/view/TMNA.2008.024.