Christian, Ryan, and Deny Jollyta. “WEB-BASED CLUSTER OPTIMIZATION USING K-MEDOIDS AND DAVIES BOULDIN INDEX”. JURTEKSI (jurnal Teknologi dan Sistem Informasi) 9, no. 1 (December 30, 2022): 109 - 116. Accessed October 7, 2025. https://jurnal.stmikroyal.ac.id/index.php/jurteksi/article/view/1855.