Maheningsih DD, Sutrisno S. Principal’s Policy for Minimizing Bullying at Muhammadiyah 2 Ngawi Junior High School. manazhim [Internet]. 1Aug.2023 [cited 26Sep.2026];5(2):1119-30. Available from: https://ejournal.ipn.ac.id/index.php/manazhim/article/view/3551