Flores-Ortega, Carlos A., Raúl Macchiavelli, Osvaldo Bosque, and Raúl Toledo. “Quality and Physiological State of Coffee at Harvest and Its Effect on Yield in Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 100, no. 1 (January 1, 2016): 27–41. Accessed December 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/8684.