Kadsri, Kamolthip, Chommanad Cheausuwantavee, and Rungtiwa Yamrung. “A STUDY OF MATHEMATICAL PROBLEM SOLVING ABILITY AND MATHEMATICALREASONING ABILITY OF NINTH GRADE STUDENTS IN SURFACE AREAS AND VOLUMES USING COGNITIVE GUIDED INSTRUCTION WITH VISUALIZATION AND THE CONVENTIONAL METHOD”. Journal of MCU Nakhondhat 9, no. 8 (August 31, 2022): 92–107. Accessed March 29, 2024. https://so03.tci-thaijo.org/index.php/JMND/article/view/263272.