Kadeepisan, K., & Wutchana, U. (2025). The Development of Mathematical Problem-Solving Ability on Integers for Mathayomsuksa 1 Students Using Problem-Based Learning (PBL) with Games. Journal of Social Science Panyapat, 7(2), 69–80. Retrieved from https://so06.tci-thaijo.org/index.php/JSSP/article/view/281159