WASET
    Arash Poordana and  Reza Ziaie Moayed,  Effect of Bentonite on Shear Strength of Bushehr Calcareous Sand.   journal   = {International Journal of Geotechnical and Geological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    January 2020, vol. 157(1). 30 - 33
    [viewed 16 April 2024]. Available from: https://publications.waset.org/pdf/10011021.