Mahmuddin Ujung, Nefi Darmayanti and Yudistira Fauzy Indarawan (2024) “THE RELATIONSHIP OF SELF-ESTEEM AND SCHOOL CLIMATE WITH BULLYING BEHAVIOR AT AL MANAR PRIVATE SMP SCHOOL MEDAN”, Multidiciplinary Output Research For Actual and International Issue (MORFAI), 4(3), pp. 652–664. doi: 10.54443/morfai.v4i3.1898.