VILLALTA OROZCO, Marvin Antonio; CIENFUEGOS NARVÁEZ, Mario Miguel. Editorial Num.12 Año 5. Revista Humanismo y Cambio Social, [S. l.], n. 12, p. 7–8, 2019. DOI: 10.5377/hcs.v0i12.8819. Disponível em: https://camjol.info/index.php/HCS/article/view/8819. Acesso em: 5 dic. 2025.