Septiani R, Lubis MR, Firzada F. Optimization of the K-Means Method and Davies-Bouldin Index (DBI) Technique in Mapping Spotify’s Most Popular Songs Based on Mood. CNAHPC [Internet]. 2025 Aug. 29 [cited 2026 Nov. 8];7(3):1057-65. Available from: https://www.jurnal.itscience.org/index.php/CNAPC/article/view/6655