HOMOTOPY PERTURBATION METHOD FOR SOLVING THE NONLINEAR WAVE EQUATIONS. Al-Nahrain Journal of Science, [S. l.], v. 13, n. 4, p. 190–193, 2010. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/1003. Acesso em: 15 apr. 2025.