Jiang, Z., Suphakit, P., & Lhongsap, P. (2026). Effectiveness of Flipped Classroom Teaching Activities on Learning Achievement of Second-Year Teacher Students in Vocational Colleges. Journal of Education Mahasarakham University, 20(3), 42–56. retrieved from https://so09.tci-thaijo.org/index.php/JOEMSU/article/view/9031