Hernández-Carrión, Tania, et al. “Sugars and Alcohol Insoluble Solids Assessment for Sweet Potato Cultivars Recommended for Puerto Rico”. The Journal of Agriculture of the University of Puerto Rico, vol. 95, no. 3-4, Oct. 2011, pp. 223-31, doi:10.46429/jaupr.v95i3-4.2577.