Okta, Oktatul, Neviyarni S, and Eki Aprinaldi. “Effectiveness of Group Tutoring Service Using Self Management Techiques to Improve High School Students’ Discipline”. Journal of Educational, Health and Community Psychology 13, no. 2 (June 29, 2024): 791–804. Accessed December 22, 2024. https://journal.uad.ac.id/index.php/Psychology/article/view/29240.