WASET
    M. Jayakumar and  Lau Chee Sing,  Experimental Studies on Treated Sub-base Soil with Fly Ash and Cement for Sustainable Design Recommendations.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 611 - 614
    [viewed 24 April 2024]. Available from: https://publications.waset.org/pdf/803.