Grouping The Districts in Sumatera Region Based on Economic Development Indicators Using K-Medoids and CLARA Methods. ujsds [Internet]. 6 Agustus 2025 [dikutip 4 Oktober 2026];1(1):16-22. Tersedia pada: https://ujsds.ppj.unp.ac.id/index.php/ujsds/article/view/13