Jantawong, S., Teemueangsa, S., & kiakana, U. (2022). Blended Learning by Using Polya’s Process to improve Mathematics Problems Solving for Phathomseuksa 5 Students, Anuban Thasapol Suksa School. Journal of Education Rajabhat Maha Sarakham University, 19(2), 52–64. Retrieved from https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/258602