ทิมโพธิ์กลาง ศ, เชื้อสาธุชน ช, เชื้อสาธุชน เ. Casual Relationships of Factors Influencing Mathematical Problem Solving Ability of MathayomSuksa 3 Students in Educational Opportunity Expansion Schools in Sisaket Province. ubonreseva [internet]. 2021 Aug. 27 [cited 2026 Oct. 3];4(1):50-6. available from: https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250964