Md. Yusof, Z., N. Ain Mohd Akhir Johari, K. Mohamed, I. Bagus Mohamed Jais, and . . “Undrained Shear Strength of Peat Soil Improved With Pond Ash-Hydrated Lime Admixture”. International Journal of Engineering & Technology, vol. 8, no. 1.9, Jan. 2019, pp. 49-52, doi:10.14419/ijet.v8i1.9.26365.