GUSMAN LESMANA; WIDA MELANI; DIAN HIKMAH BR TARIGAN. KONTRIBUSI GURU BK DALAM PENCEGAHAN PERILAKU BULLYING DI SEKOLAH. Jurnal Nirta : Studi Inovasi, [S. l.], v. 5, n. 2, p. 134–142, 2026. DOI: 10.61412/jnsi.v5i2.406. Disponível em: https://ejournal.nlc-education.or.id/index.php/JNSI/article/view/406. Acesso em: 3 mar. 2026.