Umarov, Ravshanjon. “TA’LIM XIZMATLARINI BOSHQARISHDA XALQARO STANDARTLAR ASOSIDA SIFATNI TA’MINLASH”. GREEN ECONOMY AND DEVELOPMENT 4, no. 8 (August 1, 2026): 30–35. Accessed August 8, 2026. https://www.yashil-iqtisodiyot-taraqqiyot.uz/journal/index.php/GED/article/view/11807.