Guerra-Martínez, P., R. Quiel-Batista, C. Martínez-Delgado, M. De Gracia-Victoria, O. Ibarra-Guerra, and S. Quintero-Jiménez. “BOVINE RACIAL OPTIONS AND EVALUATION CRITERIA FOR THE ASOPEGA’S CATTLEMEN, GUALACA - PANAMA”. Ciencia Agropecuaria, no. 26, Apr. 2017, pp. 1-16, http://200.46.165.126/index.php/ciencia-agropecuaria/article/view/62.