ZAMBRANO, G. A. Modal Freight Transportation: A Study of the Reactivation of the Magdalena River, Colombia. Economía & Región, [S. l.], v. 10, n. 2, p. 183–217, 2019. Disponível em: https://revistas.utb.edu.co/economiayregion/article/view/131. Acesso em: 17 may. 2024.