Davlatova Dildora Dilshod qizi, and Imomova Umida Muzafarovna. “O’zbekiston Respublikasida Amal Qiladigan Chet Tili Darajasini Aniqlash Imtihonlari Va Sertifikatlari”. Journal of Universal Science Research 1, no. 6 (July 1, 2023): 996–999. Accessed August 24, 2024. https://universalpublishings.com/index.php/jusr/article/view/1463.