Semidey, Nelson, and Angel Bosques-Vega. “Yield and Weed Suppression by Pigeon Pea Cultivars in Rotation With Tomato and Pepper”. The Journal of Agriculture of the University of Puerto Rico 83, no. 1-2 (April 1, 1999): 55–64. Accessed November 23, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/3861.