Thongmee, A., & Meesri, R.- shane. (2019). A COMPARATIVE STUDY OF COLLABORATIVE WRITING THROUGH SMALL MIXED-ABILITY GROUPS TO REDUCE WRITING ANXIETY OF GRADE 12 STUDENTS. An Online Journal of Education, 14(2), OJED1402036 (14 pages). Retrieved from https://so01.tci-thaijo.org/index.php/OJED/article/view/187720