Krisnanto, S. “Theoretical Equations for the Ratio of Undrained Shear Strength to Vertical Effective Stress for Normally Consolidated Saturated Cohesive Soils: Theoretical Equations for the Ratio of Undrained Shear Strength to Vertical Effective Stress for Normally Consolidated Saturated Cohesive Soils”. Jurnal Teknik Sipil, vol. 28, no. 3, Jan. 2022, pp. 241-52, doi:10.5614/jts.2021.28.3.1.