Preston, Alan M. “Dr. Lydia J. Roberts – Puerto Rico’s Doyenne of Nutrition: LJ Roberts-Nutritional Studies in Puerto Rico”. Puerto Rico Health Sciences Journal 45, no. 3 (September 24, 2026): 178–183. Accessed October 2, 2026. https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/3813.