Phinla, Wipapan. “Guidelines for Learning Management in Social Studies in the Development of Critical Thinking Skills for the 21st Century Learners”. Parichart Journal 30, no. 1 (April 19, 2017): 13–34. accessed September 11, 2026. https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/83398.