MAMATOV, J.; GANIYEV, E. PRINCIPLES OF SECONDARY EDUCATION SYSTEM MANAGEMENT. Журнал математики и информатики, [S. l.], v. 1, n. 5, 2021. Disponível em: https://journal.jdpu.uz/index.php/matinfo/article/view/3963. Acesso em: 18 июл. 2025.