สิทธิสารภ. (2018). Development of Teaching Sets Basing on Guidelines on STEM Education Integrated with the 7 Learning Steps of the Learning Cycle (7E) on the Topic of Polymer for Mathayom Suksa 4 Students. Academic Journal of Mahamakut Buddhist University Roi Et Campus, 8(1), 108-118. Retrieved from https://www.tci-thaijo.org/index.php/AJMBU/article/view/194930