Jantawong, S., Teemueangsa, S. and 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 (Aug. 2022), 52–64.