สุพรม สิทธิพงษ์. “Development of Active Learning Management Ability in the 21st Century for High School Students”. Ubon Ratchathani Journal of Research and Evaluation 7, no. 2 (December 31, 2018): 49–58. Accessed March 29, 2024. https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/149198.