Pitwong, Napatthira, Saner Phiromjitphong, and Nantawan Tongpitak. “The Development of Mathematics Criterion-Referenced Test on the Integers for Matthayom Suksa 1 Students”. Ubon Ratchathani Journal of Research and Evaluation 6, no. 2 (August 29, 2021): 61–70. accessed October 4, 2026. https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/251047.