Nguyen Thi Bich Van, Nguyen Dinh Sinh, Hoang Thi Huyen, Doan Thi Thu Thuy. DEVELOPING SUPPLEMENTARY MATERIALS TO TEACH SPEAKING SKILLS FOR THE FIRST- YEAR ENGLISH MAJORS AT HUNG YEN UNIVERSITY OF TECHNOLOGY AND EDUCATION. jst [Internet]. 2023Aug.20 [cited 2024Dec.22];39:57-3. Available from: http://jst.utehy.edu.vn/index.php/jst/article/view/634