Maussa Pérez, Fausto. “Alternative Model for Company Self-Sufficiency”. Cuadernos de Administración 26, no. 44 (November 1, 2011): 41–56. Accessed December 7, 2022. https://cuadernosdeadministracion.univalle.edu.co/index.php/cuadernos_de_administracion/article/view/434.