GOUDER, P.; KOLLI, V.; PAGE, M. H.; CHAVARADDI, K. B.; CHANDARAGI, P. The Homotopy Perturbation Method to Solve a Wave Equation. Communications in Mathematics and Applications, [S. l.], v. 13, n. 2, p. 691–701, 2022. DOI: 10.26713/cma.v13i2.1764. Disponível em: https://www.rgnpublications.com/journals/index.php/cma/article/view/1764. Acesso em: 2 may. 2024.