Chumnasiao, Chaivat, and Arkom Eungpuang. 2022. “Development of Teachers’ Potential in Conducting a Classroom Action Research to Enhance Learners’ Characteristics Based on CCPR Model”. Princess of Naradhiwas University Journal of Humanities and Social Sciences 9 (1):239-57. https://so05.tci-thaijo.org/index.php/pnuhuso/article/view/254034.