Boontha, Kanmanee, and Praphakorn Phapor. “THE DEVELOPMENT OF SPELLING WRITING ACHIEVEMENT USING THE TPR (TOTAL PHYSICAL RESPONSE) LEARNING TECHNIQUE FOR PRATHOMSUKSA 2 STUDENTS, THETSABAN 1 SCHOOL (WITTHAYANARI), MUEANG CHAIYAPHUM DISTRICT, CHAIYAPHUM PROVINCE”. Journal of Research and Innovation for Sustainability (JRIS) 3, no. 4 (August 28, 2026): 71–91. accessed September 23, 2026. https://so17.tci-thaijo.org/index.php/JRIS/article/view/1966.