Bubphaprom P, Chantraukrit P. Development of Science Board Game Based on Scaffolding Approach to Promote Collaborative Problem Solving Competency of Upper Secondary Students. OJED [internet]. 2026 Jun. 19 [cited 2026 Aug. 26];21(1):1-17. available from: https://so01.tci-thaijo.org/index.php/OJED/article/view/284558