Siregar, Saut Dohot, Yusra Uli Rasita Ginting, Nita Sintami, Hari Salim Butar-Butar, and Riki Marthin Simanjuntak. “Implementation of KNN Algorithm in Classifying Diabetic Ulcers in Patients With Diabetes Mellitus”. Jurnal Mantik 7, no. 2 (August 30, 2023): 691-701. Accessed May 25, 2026. https://www.iocscience.org/ejournal/index.php/mantik/article/view/3928.