Jeekartok, K., P. Chaichitwanidchakol, C. Burat, and S. Tasarin. “THE DEVELOPMENT OF LEARNING MEDIA APPLICATION SMARTPHONES ON COMPUTATIONAL THINKING FOR MATHAYOMSUKSA 4”. Journal of Humanities, Social Sciences, and Arts, vol. 4, no. 1, Apr. 2023, pp. 21-27, https://so03.tci-thaijo.org/index.php/hsa/article/view/267216.