Sari, Desi Nurian, Lira Erwinda, and Nurul Fajri. “Comparasion of Self Confidence Levels Between Active and Inactive Students in Extracurricular Activities ”. Journal of Behavioral Innovation 1, no. 1 (April 21, 2026): 1–6. Accessed April 30, 2026. https://journal.aapbk.org/index.php/jbi/article/view/539.