บุรีพันธ์ ภ. . ., & อักษรวงศ์ ร. . . (2021). Effect of Problem-Based Learning on Mathematical Reasoning Abilities of Mathayom Suksa 3 Students. Ubon Ratchathani Journal of Research and Evaluation, 4(1), 22–32. retrieved from https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250960