Gultom, Reinhard Oktaveri, Estomih Wau, Jodi Alexsander Laia, Ivan Leonardo Silaban, and Yennimar Yennimar. “Implementation of Clustering Methods to Know Electricity Energy Sold Average Customer Type”. Jurnal Mantik 5, no. 2 (August 1, 2021): 1119-1126. Accessed October 30, 2026. https://www.iocscience.org/ejournal/index.php/mantik/article/view/1475.