Na Ubo, P., & Chai-ngam, R. (2022). The Study of the Effect of Unplugged Coding Leaning Activity on Computational Thinking Skill of Grade 3 Students. Journal of Education Rajabhat Maha Sarakham University, 19(2), 144–153. retrieved from https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/258621