AHMED, S.; MOHAMMED HUSSEIN, K. Effect of school Admin, Strations in Lessening Academic bullging field study in school of nineveh governorate. College of Basic Education Research Journal, [S. l.], v. 18, n. 4, p. 312–320, 2022. DOI: 10.33899/berj.2022.176440. Disponível em: https://moss.uomosul.edu.iq/index.php/berj/article/view/39148. Acesso em: 26 oct. 2025.