2025. 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, 2 (Jul. 2025), 1218–1227. DOI:https://doi.org/10.35314/pqkbwx68.