Tien Thinh Vu, Diem Bich Huyen Bui. Blended Learning in University Writing Classes - Efficiency and Attitude. TJ [internet]. 2020 Dec. 23 [cited 2026 Sep. 24];33(2):20-45. available from: https://so05.tci-thaijo.org/index.php/thaitesoljournal/article/view/248621