Cortés-Monllor, Amelia, and Lii-Jang Liu. “Tissue Culture Propagation of Yam in Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico 67, no. 4 (October 1, 1983): 419–428. Accessed November 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/7736.