Wangge, Magdalena, Dadan Dasari, and Turmudi Turmudi. “K-Means Classification Analysis of Concept Understanding and Self-Efficacy: Exploring the Relationship in an Educational Context”. Jurnal Matematika, Statistika dan Komputasi 20, no. 2 (December 24, 2023): 416-425. Accessed November 16, 2024. http://journal-old.unhas.ac.id/index.php/jmsk/article/view/32099.