The Effect of Group Counseling Using the Behavior Contract Technique on Verbal Bullying Among Eighth-Grade Students at SMP Negeri 1 Percut Sei Tuan. Cakrawala Sekolah: Journal of Multidisciplinary School Education, [S. l.], v. 1, n. 3 September, p. 1–14, 2026. DOI: 10.66851/b9ka0d48. Disponível em: https://esp-journal.com/index.php/cakrawala-sekolah/article/view/395. Acesso em: 9 oct. 2026.