Rodríguez, Rocío del P., Wigmar González, and Oswaldo Bosques. “Identifying Interspecific Lines of Coffee Resistant to Hemileia Vastatrix Berk. Et Br. And Evaluating Their Adaptability to the Coffee Growing Region of Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 104, no. 2 (July 1, 2020): 165–180. Accessed June 26, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/19040.