AlAzzawi M, Abdul Hussein S, Mohsen K. The level of administrative modernization and its relationship to the professional performance of school principals National secondary school. JEH [Internet]. 2024 Jan. 1 [cited 2025 Oct. 2];4:765-88. Available from: https://rsprs.uomosul.edu.iq/index.php/jeh/article/view/43773