หินขาว ท, เอกะกุล ธ. 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 . ubonreseva [internet]. 2021 Aug. 27 [cited 2026 Oct. 4];3(1):30-8. available from: https://so06.tci-thaijo.org/index.php/ubonreseva/article/view/250927