“Data Visualization Using Tableau With K-Mean Clustering Method Uor Identification Of Poor Areas in North Sumatera”. Journal of Innovation and Technology Polbeng Series on Informatics (INOVTEK Polbeng - Seri Informatika) 10, no. 2 (July 17, 2025): 1218–1227. Accessed June 30, 2026. https://jurnal.polbeng.ac.id/index.php/ISI/article/view/800.