ผิวมณี ศ, ใจสบาย ก, พลหลา ม. The study Achievement and Connection Skill of Linear Equations The SSCS Method Affecting Learning Achievement of Mathayomsuksa III Students. Pitchayatat [internet]. 2019 Dec. 27 [cited 2025 Apr. 28];14(3):155-61. available from: https://so02.tci-thaijo.org/index.php/Pitchayatat/article/view/237161