หินขาว ทองพันธ์, and เอกะกุล ธีรวุฒิ. “A Development of the Basic Mathematical Skills Based on the Educational Game Activities for the Pre-School Students of Ban Nokten School under Ubon Ratchathani Primary Educational Service Area Office 3”. Ubon Ratchathani Journal of Research and Evaluation 3, no. 1 (August 27, 2021): 30–38. accessed October 4, 2026. https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250927.