“Three Dimensional Analysis of Piles on Sloping Ground Subjected to Passive Load Induced by Surcharge”, Int. j. eng. technol. innov., vol. 2, no. 1, pp. 31–47, Jan. 2012, Accessed: Oct. 15, 2026. Available: https://ojs.imeti.org/index.php/IJETI/article/view/27