srivilai, sirikwan, K. Sangaroon, and S. Thinwingthong. “Teachers’ Knowledge of Student Learning in Secondary Mathematics Classroom Using Lesson Study and Open Approach”. Mahachula Academic Journal, vol. 10, no. 3, Dec. 2023, pp. 177-92, https://so04.tci-thaijo.org/index.php/JMA/article/view/263830.