Kongchulagul, Natsuangkorn, and Pholphiphat Sukpattee. 2025. “Planning Recreational Learning Activities to Foster Critical Thinking, Problem-Solving, and Collaboration Competencies in Secondary Education”. Thammasat Journal 44 (3):106-19. https://so05.tci-thaijo.org/index.php/tujo/article/view/271222.