TRASI, M. S. Solution of a First Order Linear Partial Differential Equation. Defence Science Journal, [S. l.], v. 24, n. 1, p. 13–14, 2014. DOI: 10.14429/dsj.24.6496. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/6496. Acesso em: 16 jun. 2025.