Naimova Aziza Muxammadovna, Umarova Veronika. Is getting an IELTS or CEFR certificate the same as knowing English?. Erb [Internet]. 2022 Apr. 30 [cited 2025 Apr. 17];7:185-8. Available from: https://www.geniusjournals.org/index.php/erb/article/view/1296