Arroyo-Aguilú, José A., and Luis Rivera-Brenes. “Relationship Between the Percentages of Crude Protein and Apparently Digestible Protein in Some Forages of Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 49, no. 1 (January 20, 2022): 145–148. Accessed November 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/13016.