Uppasri, N., & Nantasri, W. (2020). The Development of a Learning Management Model for Solving Mathematical Problems of Prathomsuksa 5 Students under the Jurisdiction of Sakon Nakhon Primary Educational Service Area Office 1. Academic Journal of Mahamakut Buddhist University Roi Et Campus, 10(2), 444–457. Retrieved from https://so01.tci-thaijo.org/index.php/AJMBU/article/view/243644