Sánchez Nieva, F. “The Influence of Degree of Maturity on the Quality of Canned Pigeonpeas”. The Journal of Agriculture of the University of Puerto Rico 45, no. 4 (October 1, 1961): 217–231. Accessed April 25, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/13760.