Chaichana, Saychon, and Sirirat Hitakowit. “Problem-Based Learning (PBL) for Enhancing Lower Secondary Students in Health Education: Life Safety”. Interdisciplinary Academic and Research Journal 5, no. 3 (June 2, 2025): 1211–1228. accessed September 21, 2026. https://so03.tci-thaijo.org/index.php/IARJ/article/view/288392.