Kongchulagul, Natsuangkorn, and Pholphiphat Sukpattee. “Planning Recreational Learning Activities to Foster Critical Thinking, Problem-Solving, and Collaboration Competencies in Secondary Education”. Thammasat Journal 44, no. 3 (December 29, 2025): 106–119. accessed September 11, 2026. https://so05.tci-thaijo.org/index.php/tujo/article/view/271222.