Van , Hoang Van. “The Development of the Ten-Year English Textbook Series for Vietnamese Schools under the National Foreign Language 2020 Project: A Cross-Cultural Collaborative Experience”. VNU Journal of Foreign Studies 31, no. 3 (September 15, 2015). Accessed May 2, 2024. https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/15.