Dr. C. H. Solanki, N. B. Umravia,. “Laboratory Experimental Performance of Novel Cement-Fly Ash-Gravel Piles Group for Soft Clay Ground Improvement ”. Design Engineering (August 7, 2021): 6828- 6843. Accessed May 2, 2024. http://www.thedesignengineering.com/index.php/DE/article/view/3200.