WASET
    M. Nafi and  A. El Amein and  M. El Dawi and  K. Salih and  O. Elbahi and  A. Abou,  Wadi Halfa Oolitic Ironstone Formation, Wadi Halfa and Argein Areas, North Sudan.   journal   = {International Journal of Environmental and Ecological Engineering}, [online]. World Academy of Science, Engineering and Technology.
    October 2015, vol. 106(10). 1290 - 1295
    [viewed 19 September 2024]. Available from: https://publications.waset.org/pdf/10002852.