Gouder, P.M., V.H. Kolli, Md. Hanif Page, Krishna B. Chavaraddi, and Praveen Chandaragi. “The Homotopy Perturbation Method to Solve a Wave Equation”. Communications in Mathematics and Applications 13, no. 2 (August 17, 2022): 691–701. Accessed November 24, 2024. http://rgnpublications.com/journals/index.php/cma/article/view/1764.