“A Study of Some Methods for Solving First-Order Linear and Nonlinear Partial Differential Equations”. Libyan Open University Journal of Applied Sciences (LOUJAS), [S. l.], v. 2, n. 1, p. 465–474, 2026. DOI: 10.65422/loujas.v2i1.290. Disponível em: https://oujournals.ly/index.php/LOUJAS/article/view/290. Acesso em: 20 jun. 2026.