Abdulfatah Faraj Aboufayed,  Measuring the Amount of Eroded Soil and Surface Runoff Water in the Field.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2013, vol. 84(12). 825 - 828
    [viewed 27 November 2021]. Available from: https://publications.waset.org/pdf/9996663.