Jeeraphan K, Pikultong M. Development of Digital Learning Resources to Improve Geometric Shapes Test Scores of Primary 3 (Grade 3) Students . JDSC [internet]. 2025 Apr. 29 [cited 2026 Oct. 13];12(1):579-92. available from: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/284875