CASTILLO VALENCIA, María del Pilar; CRUZ GARCÍA, Nathaly. How efficient are organizations for protection of internally displaced people?. Sociedad y Economía, [S. l.], n. 16, p. 35–50, 2009. DOI: 10.25100/sye.v0i16.4075. Disponível em: https://sociedadyeconomia.univalle.edu.co/index.php/sociedad_y_economia/article/view/4075. Acesso em: 3 jan. 2026.