Maxmudjonovna, Khodjieva Zumrad. “The Impact of the CEFR on Teaching and Testing English in Uzbek Universities”. American Journal of Social and Humanitarian Research 4, no. 3 (March 8, 2023): 50–53. Accessed May 4, 2024. https://globalresearchnetwork.us/index.php/ajshr/article/view/2042.