ศรีชู สุชีพ, and ตั้งปกาศิต จตุพล. “Effect of Using Rice Husk Ash to Replace Portland Cement on Compressive Strength of Concrete Under Pressure Mold”. Journal of Engineering, RMUTT 14, no. 2 (December 30, 2016): 55–67. Accessed April 23, 2024. https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242014.