การสมทรัพย์ ก, จุ้ยทอง ส, 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 [Internet]. 2018 Sep. 27 [cited 2024 May 4];8(2):129-3. Available from: https://so06.tci-thaijo.org/index.php/var/article/view/147894