WASET
    Magdi M. E. Zumrawi,  Investigating Causes of Pavement Deterioration in Khartoum State, Sudan.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2015, vol. 107(11). 1458 - 1463
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10002917.