Ngan Ha, Nguyen. “AN ACTION RESEARCH ON IMPROVING EFL STUDENTS’ ESSAY WRITING SKILLS BY USING THE PROCESS APPROACH”. VNU Journal of Foreign Studies 37, no. 5 (October 31, 2021): 45-65. Accessed April 20, 2024. https://jfs.ulis.vnu.edu.vn/index.php/fs/article/view/4911.