นวลสอาด ประภาพร. “The Effects of Program a Development of Ability in Creative Problem Solving of Mattayomsuksa 3 Students in Pramoch Vittaya Ramintra School”. Journal of Yanasangvorn Research Institute Mahamakut Buddhist University 8, no. 2 (December 19, 2017): 275–284. accessed October 7, 2026. https://so04.tci-thaijo.org/index.php/yri/article/view/178499.