Janwat, W., P. Pariput, and P. . Phitchayapirath. “The Development of Learning Achievement in Mathematics on Multiplication for Grade 3 Students by Using Active Learning on Akita Model”. Ubon Ratchathani Journal of Research and Evaluation, vol. 12, no. 2, Dec. 2023, pp. 60-72, https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/265471.