Peran Teman Sebaya Dalam Mencegah Perilaku Bullying di SD Muhammadiyah Gunung Lagan . Logika [Internet]. 2025 May 9 [cited 2026 Feb. 10];1(1):8-15. Available from: https://www.journal.putramaysa.com/index.php/Logika/article/view/170