Aziz K, ابراهیم, Juma Hamza Al-Shaheen I, خالد. Administrative diseases of secondary school principals from the point of view of physical education teachers in the city of Mosul. RJSS [Internet]. 2025 Jun. 25 [cited 2025 Sep. 6];26(83):190-209. Available from: https://tanmiyat.uomosul.edu.iq/index.php/rjss/article/view/36013