Panichayapan P, Nimsunk A, Pooliam R. Developing Academic Achievement on the Four Noble Truths for 2nd Level of Secondary Khainarai suksa army sponsor School Education Students Using Problem-based Learning. วารสารวิชาการ มนส. เทพสตรี [internet]. 2025 Apr. 30 [cited 2025 Dec. 6];16(1):183-98. available from: https://so01.tci-thaijo.org/index.php/truhusocjo/article/view/271889