Wessel, Nancy. Service Learning in Colombian and Us Sociology Departments: Guidelines for Curriculum Planning. Revista Historia de la EducaciĆ³n Colombiana 10, no. 10 (diciembre 10, 2007): 101 - 110. Accedido mayo 18, 2022. https://revistas.udenar.edu.co/index.php/rhec/article/view/1042.