Charoensuk S, Chanunan S. Development of Collaborative Problem Solving Competency of 11th Grade Students Using STEM Learning Through Engineering Design Process in Geological Phenomena. GS KKU HS [Internet]. 2020 Aug. 30 [cited 2024 May 20];8(2):22-34. Available from: https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/245309