Thamphattharakun S, Charoensuk O, Suwathanpornkul I. Development of Competency in Science Projects with Scaffolding Learning Processes for Grade Six Students by Applying Design-based Research. ambj [internet]. 2021 Dec. 27 [cited 2026 Sep. 29];6(2):198-212. available from: https://so06.tci-thaijo.org/index.php/ambj/article/view/249340