Intapong, Supunsa. “Development of a STEAM4 INNOVATOR-Based Learning Process Using a Leaf Compression Machine to Enhance Students’ Innovation and Environmental Problem-Solving Skills”. Journal of Education & Learning Development Innovation 4, no. 1 (December 22, 2025): 12–23. accessed September 17, 2026. https://so15.tci-thaijo.org/index.php/JELDI/article/view/2382.