“Comparison of the Performance of the K-Means and K-Medoids Algorithms in Grouping Regencies/Cities in Sumatera Based on Poverty Indicators”. 2023. UNP Journal of Statistics and Data Science, vol. 1, no. 2, Maret 2023, hlm. 59-66, https://ujsds.ppj.unp.ac.id/index.php/ujsds/article/view/25.