Nantavichit N, Saengngam J, Srihaset K. Construction of A Mathematical Collaborative Problem - Solving Assessment for Upper Secondary School Students. วารสารวิชาการ มนส. เทพสตรี [internet]. 2026 Aug. 16 [cited 2026 Sep. 13];17(2):125-46. available from: https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/285597