Sitthiphoom, Phatcharin, Apirak Anaman, and Suwannee Yahakorn. “The Effects of Flipped Classroom Activities Management on Learning Achievement in Principles of Thai Language Usage and Avidity for Learning of Mattayayom Suksa I Students in Schools under Secondary Education Service Area Office 18”. STOU Education Journal 14, no. 1 (June 28, 2021): 153–167. accessed April 10, 2025. https://so05.tci-thaijo.org/index.php/edjour_stou/article/view/216502.