Hafezi, Naser, Pouya Salari, Gholam Reza Lashkaripour, and Mohammad Ghafoori. “Presenting New Models to Determine Subgrade Reaction Modulus (Ks) for Optimizing Foundation Calculations in Coarse Grained Soils”. Journal of Construction 19, no. 2 (August 31, 2020): 235–243. Accessed March 8, 2026. https://ojs.uc.cl/index.php/RDLC/article/view/13956.