Guiscafré Arrillaga, J., and Luis A. Gómez. “EFFECT OF SOLAR RADIATION INTENSITY ON THE VEGETATIVE GROWTH AND YIELD OF COFFEE”. The Journal of Agriculture of the University of Puerto Rico 26, no. 4 (October 1, 1942): 73–90. Accessed November 26, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/13586.