Vélez Quintero, Andrés. “Theory and Data in Sociological Student Research Practices on Youth: Universidad Del Valle and Universidad Nacional (1988-2008)”. Sociedad y Economía, no. 26 (January 15, 2014): 185–212. Accessed January 19, 2025. https://ojs.h-novigo.com/index.php/sociedad_y_economia/article/view/3957.