Somkeattikul, Kreetha, Wuttikon Jariyatontivait, and Chootrakul Siripaiboon. “Design and fabrication of torsion testing machine for reinforced foam concrete”. RMUTL Engineering Journal 9, no. 1 (June 16, 2024): 43–51. accessed April 2, 2025. https://ph01.tci-thaijo.org/index.php/RMUTLEngJ/article/view/252042.