Macroeconomic aspects of agriculture and agricultural politic in Colombia. Revista Sistemas de Producción Agroecológicos, [S. l.], v. 6, n. 1, p. 67–88, 2015. DOI: 10.22579/22484817.665. Disponível em: https://ojs-unillanos-prueba.metarevistas.org/index.php/sistemasagroecologicos/article/view/665. Acesso em: 14 sep. 2026.