Nargiza J. Juraeva. EXPERIMENTAL STUDY OF THE EFFECTIVENESS OF THE PROCESS OF TRAINING SCHOOL PRINCIPALS TO IMPLEMENT QUALITY MANAGEMENT OF SCHOOL EDUCATION. tajssei [Internet]. 2023 Jan. 25 [cited 2025 Jul. 12];5(01):10-8. Available from: https://theamericanjournals.com/index.php/tajssei/article/view/3929