Tumanggor, D. S. D., M. M. Sianipar, and S. P. Sipayung. “Implementation of K-Means Method for Clustering Natural Disaster Priority Areas in North Sumatra”. Journal of Computer and Information Systems Ampera, vol. 7, no. 1, Sept. 2026, pp. 16-31, doi:10.51519/journalcisa.v7i1.756.