Rodphol, Nanthaporn, and Ubonwan Songserm. 2025. “The Development of Creative Problem - Solving Skills and Teamwork Through Collaborative Learning Theory for Grade 8 Students”. Journal of Faculty of Humanities and Social Sciences Thepsatri Rajabhat University 16 (3):189-204. https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/279246.