Thitipliwat, T. and Kanchanapiboon, S. (2025) “The Compare of Critical Thinking Social Studies, Religion and Culture Subject of Grade Seven by Using Problem–Based Learning”, Journal of Graduate MCU KhonKaen Campus, 12(2), pp. 133–142. available at: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/276082 (accessed: 29 September 2026).