ไทยกรรณ์ ส., ชมภูคำ พ., and ชิดทอง พ. “The Development of Learning and Integrated Mathematical Thinking Skills by Using the 7e Learning Cycle Activities With Community Resources for Mathayomsuksa 2 Students”. Journal of Graduate Research, vol. 10, no. 2, Dec. 2019, pp. 17-38, https://so02.tci-thaijo.org/index.php/banditvijai/article/view/190056.