Nurjanah S, Prayogi F, Sutrisno J. An Efforts Increasing the Student Learning Concentration Using a Group Tutoring Approach Self-Management Techniques. IJoASER [Internet]. 28Mar.2025 [cited 24Oct.2026];8(1):138-46. Available from: https://ojs.staialfurqan.ac.id/IJoASER/article/view/828