Sangthong, Suprawee, and Montree Wongsaphan. “DEVELOPMENT OF PROBLEM – SOLVING ABILITY IN MATHEMATICAL FOR MATHAYOMSUKSA 4, USING INQUIRY BASED LEARNING AND COOPERATIVE PROBLEM SOLVING LEARNING PACKAGE PROBABILITY”. Journal of MCU Nakhondhat 7, no. 9 (September 21, 2020): 221–235. Accessed April 25, 2024. https://so03.tci-thaijo.org/index.php/JMND/article/view/246738.