Guerra-Martínez, P., R. Quiel-Batista, C. Martínez-Delgado, M. De Gracia-Victoria, O. Ibarra-Guerra, and S. Quintero-Jiménez. “ASOPEGA’S CATTLEMEN PERCEPTIONS ABOUT BOVINE RACIAL OPTIONS, GUALACA - PANAMA”. Ciencia Agropecuaria, no. 26, Apr. 2017, pp. 17-35, http://200.46.165.126/index.php/ciencia-agropecuaria/article/view/65.