Gusman Lesmana, Wida Melani, Dian Hikmah Br Tarigan. KONTRIBUSI GURU BK DALAM PENCEGAHAN PERILAKU BULLYING DI SEKOLAH. JNSI [Internet]. 2026 Feb. 27 [cited 2026 Mar. 3];5(2):134-42. Available from: https://ejournal.nlc-education.or.id/index.php/JNSI/article/view/406