Thatchaphan Khamkodkaew. “THE DEVELOPMENT OF LEARNING ACHIEVEMENT IN THE HISTORY SUBJECT ON THE TOPIC RATTANAKOSIN: THE REFORM ERA, USING THE JIGSAW COOPERATIVE LEARNING TECHNIQUE FOR MATHAYOM 3/4 STUDENTS AT NONG WUA SO PITTAYAKOM SCHOOL UNDER THE SECONDARY EDUCATIONAL SERVICE AR”. Buddhism in Mekong Region Journal 9, no. 1 (July 1, 2026): 107–119. accessed September 11, 2026. https://so06.tci-thaijo.org/index.php/bmrj/article/view/297741.