Teresa Martuah Purba, Angela Steffani Br Sitanggang, and Sardo Pardingotan Sipayung, “Application of the K-Medoid Algorithm to Cluster Percentage Data Based on Urban and Rural Areas in Indonesia”, j. of artif. intell. and eng. appl., vol. 5, no. 2, pp. 3109–3113, Feb. 2026.