Jaritkai, Suwachana, and สกลเกียรติ พจมาลย์. 2021. “Development of Ability to Apply for Scratch Program With Challenge Based Learning in Mathayomsuksa 1 Students”. Mahamakut Graduate School Journal 19 (2):210-24. https://so04.tci-thaijo.org/index.php/mgsj/article/view/255951.