Silva, Servando, José Vicente-Chandler, and Fernando Abruña. “Water Management Systems and Rice Yields Under Humid Tropical Conditions in Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 67, no. 4 (October 1, 1983): 386–389. Accessed November 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/7732.