1.
suksawat yatawee, Thipchart yuthapong. A study of Representation and Mathematical Problem Solving for Mathayomsuksa I students. JDSC [internet]. 2024 Aug. 16 [cited 2026 Aug. 27];11(2):311-26. available from: https://so03.tci-thaijo.org/index.php/rdirmu/article/view/278561