QUANG, Vo Dai; HANG, Trinh Thi Dieu. Action research: An overview. VNU Journal of Foreign Studies, [S.l.], v. 24, n. 4, dec. 2008. ISSN 2525-2445. Available at: <https://js.vnu.edu.vn/FS/article/view/3215>. Date accessed: 06 apr. 2025.