Guerra-Martínez, Pedro, Carlos Martínez-Delgado, José Bernal-Rosas, María De Gracia-Victoria, and Olegario Ibarra-Guerra. “RELATED FACTORS WITH THE INCOME PER HECTARE OF THE COW-CALF SYSTEM, PANAMA”. Ciencia Agropecuaria, no. 41 (July 25, 2025): 120-140. Accessed October 9, 2026. http://revistacienciaagropecuaria.ac.pa/index.php/ciencia-agropecuaria/article/view/680.