Banchuen, Kijja, and Wimonrat Chaturanon. “Development of Instructional Model to Promote and Create in Critical Thinking for Vocational Students based on Theory of Constructivism”. Ratchaphruek Journal 12, no. 3 (December 29, 2014): 33–41. accessed August 26, 2026. https://so05.tci-thaijo.org/index.php/Ratchaphruekjournal/article/view/240906.