Bahar Razavi and  Mansour Parehkar and  Ali Gholami,  Investigation on Pore Water Pressure in Core of Karkheh Dam.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2011, vol. 59(11). 539 - 542
    [viewed 18 May 2022]. Available from: https://publications.waset.org/pdf/15994.