Nambuddee N, Changsri N, Inprasitha M. Teachers’ Interpretation of Mathematics Textbook by Using Lesson Study and Open Approach. GS KKU HS [Internet]. 2019 Jul. 31 [cited 2024 Apr. 20];7(2):23-35. Available from: https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/206622