[1]
การสมทรัพย์ ก., จุ้ยทอง ส., and คงทอง อ., “A STUDY OF THE ABILITY TO SOLVE WORD PROBLEMS OF GRADE 3 STUDENTS USING A TEACHING APPROACH ON CIPPA MODEL INTEGRATED WITH POLYA’S PROBLEMS SOLVING PROCESS”, VAR, vol. 8, no. 2, pp. 129–139, Sep. 2018.