Simmatun, Prawit. “The Development of Learning Activities Based on Design Thinking Combined with Lateral Thinking Techniques to Enhance Creative Thinking of Pre-Service Teachers”. Journal of Education Rajabhat Maha Sarakham University 23, no. 2 (August 30, 2026): 397–406. accessed September 13, 2026. https://so06.tci-thaijo.org/index.php/edu-rmu/article/view/293124.