พงศ์ศิวะสถิตย์ ศ. ., มั่นใจ ส. ., and ปิยะพิพัฒน์ ส. . “Effect of Slab Existence on Settlement-Time Curve of Soft Clayey Deposit Improved by Floating Soil-Cement Column”. Journal of Engineering, RMUTT, vol. 2, Dec. 2015, pp. 69-80, https://ph01.tci-thaijo.org/index.php/jermutt/article/view/242045.