“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), vol. 10, no. 2, July 2025, pp. 1218-27, https://doi.org/10.35314/pqkbwx68.