BAENA ROJAS, Jose Jaime. Transition to the generalized systems of preferences: a change of policy in international cooperation. Semestre Económico, [S. l.], v. 23, n. 54, p. 61–83, 2020. DOI: 10.22395/seec.v23n54a4. Disponível em: https://revistas.udem.edu.co/index.php/economico/article/view/3234. Acesso em: 18 apr. 2026.