Rodphol N, Songserm U. The Development of Creative Problem - Solving Skills and Teamwork Through Collaborative Learning Theory for Grade 8 Students . วารสารวิชาการ มนส. เทพสตรี [internet]. 2025 Dec. 27 [cited 2026 Sep. 14];16(3):189-204. available from: https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/279246