WASET
    R. Ziaie Moayed and  M. Nazari,  Effect of Utilization of Geosynthetic on Reducing the Required Thickness of Subbase Layer of a Two Layered Soil.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2011, vol. 49(1). 27 - 31
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/6705.