Onsri, Benjaluk, Sirawan Jaradrawiwat, and Apunchanit Jenjit. 2020. “Effects of Mathematics Learning Activity Management Using Cooperative Learning STAD Technique With The Polya’s Problem Solving Process of Prathomsuksa 4 Students”. Academic Journal of Mahamakut Buddhist University Roi Et Campus 10 (1):262-77. https://so01.tci-thaijo.org/index.php/AJMBU/article/view/247218.