PRADA MAYORGA, Jaime. Editorial Desafíos 20. Desafíos, [S. l.], v. 20, p. 7–9, 2010. DOI: 10.12804/revistas.urosario.edu.co/desafios/a.420. Disponível em: https://revistas.urosario.edu.co/index.php/desafios/article/view/420. Acesso em: 28 feb. 2026.