Sripanwong, Suphattharachai, Chedtharat Kongrat, and Jutiporn Weluwan. “The Development of Analytical Thinking Ability of Matthayomsuksa 1 Students Using Phenomenon-Based Learning (PhBL)”. Journal of Graduate Research 14, no. 1 (June 29, 2023): 51–66. accessed September 3, 2026. https://so02.tci-thaijo.org/index.php/banditvijai/article/view/259497.