ANAYA, Eugenio C. Mayo 1981. ECA: Estudios Centroamericanos, [S. l.], v. 36, n. 392, p. 571–576, 1981. DOI: 10.51378/eca.v36i392.9170. Disponível em: https://revistas.uca.edu.sv/index.php/eca/article/view/9170.. Acesso em: 12 may. 2025.