VILLALTA OROZCO, Marvin Antonio; CIENFUEGOS NARVÁEZ, Mario Miguel. Editorial Num.13 Año 6. Revista Humanismo y Cambio Social, [S. l.], n. 13, p. 8–10, 2019. DOI: 10.5377/hcs.v0i13.8831. Disponível em: https://camjol.info/index.php/HCS/article/view/8831. Acesso em: 5 dic. 2025.