“OPTIMIZING K-MEANS ALGORITHM WITH ELBOW AND SILHOUETTE METHODS FOR NATIONAL EXAM SCORE DATA CLUSTERING”, JIKR, vol. 1, no. 1, pp. 1–6, Jan. 2024, Accessed: Apr. 15, 2026. [Online]. Available: https://journal.lintasgenerasi.com/index.php/JIKR/article/view/1