Tuyet, Tran Thi Anh. “THE EFFECTIVENESS OF COLLABORATIVE BRAINSTORMING TRAINING PROCEDURES AT PRE-WRITING STAGE IN INTERMEDIATE ENGLISH CLASSES”. VNU Journal of Foreign Studies 33, no. 6 (December 1, 2017). Accessed April 27, 2024. https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/4213.