González-Vélez, Agenol. “Yield and Natural Reaction to Anthracnose (Colletotrichum Gloeosponoides) of Four Yam Cultivars Planted Without Staking”. The Journal of Agriculture of the University of Puerto Rico 90, no. 1-2 (April 1, 2006): 75–81. Accessed April 19, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/2962.