OSPINO PORTILLO, J. E. Espacios Lp. Ingeniería y Desarrollo, [S. l.], v. 9, n. 9, p. 128–135, 2011. Disponível em: https://rcientificas.uninorte.edu.co/index.php/ingenieria/article/view/2282. Acesso em: 3 abr. 2025.