Hernández-Carrión, Tania, Carlos E. Ortiz, Rafael Montalvo-Zapata, and Luis E. Rivera. “SUGARS IN TROPICAL-TYPE SWEET POTATO VARIETIES OF PUERTO RICO”. The Journal of Agriculture of the University of Puerto Rico 94, no. 1-2 (April 1, 2010): 205–209. Accessed May 16, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/2599.