Phungthaisong, K. ., & Chookhampaeng, C. (2020). The Development of Critical Thinking by Using James McKernan’s Time Cycle Process of the Action Research Model for Matthayomsueksa 5 Students. Journal of Roi Et Rajabhat University, 14(1), 50–61. Retrieved from https://so03.tci-thaijo.org/index.php/reru/article/view/175322