Ellis, M. A., E. J. Ravalo, and R. S. Smith. “Methods for Pigeon Pea Seed Storage in Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 63, no. 4 (October 1, 1979): 423–427. Accessed April 24, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/10257.