JIMÉNEZ-VELÁZQUEZ, Mercedes A.; GONZÁLEZ- BURGOS, Gerardo. Analysis of external resources in agricultural production. Revista Mexicana de Ciencias Agrícolas, México, ME, v. 8, n. 18, p. 3741–3755, 2017. DOI: 10.29312/remexca.v8i18.218. Disponível em: https://cienciasagricolas.inifap.gob.mx/index.php/agricolas/article/view/218. Acesso em: 31 may. 2026.