ALLAYAROVA, Zebiniso, and Shohida BILLAYEVA. “HISTORICAL DEVELOPMENT OF IELTS ASSESSMENT SYSTEM”. «ACTA NUUz» 1, no. 1.6 (April 22, 2026): 277–279. Accessed April 30, 2026. http://journals.nuu.uz/index.php/actanuuz/article/view/11953.