The Development of Mathematical Learning Activities Based on Constructivist Theory Emphasizing Polya’s Problem Solving Processes on Mixed Word Problems for Prathomsuksa 4

เดชแพง น., “The Development of Mathematical Learning Activities Based on Constructivist Theory Emphasizing Polya’s Problem Solving Processes on Mixed Word Problems for Prathomsuksa 4”, EDGKKUJ, vol. 11, no. 4, pp. 24–35, May 2018.