Putri, Yollanda, and Dina Fadhila. “Substance Dipeptidyl Peptidase IV in Purple Sweet Potatoes to Maintain Blood Sugar Levels”. Journal of Catalyst and Bioinformatics (Catalytic) 1, no. 01 (January 16, 2022): 35-42. Accessed April 4, 2025. http://catalytic.ppj.unp.ac.id/index.php/jurnal/article/view/94.