WASET
    Khosro Mohammadi,  Effect of Different Fertilization Methods on Soil Biological Indexes.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2011, vol. 54(6). 329 - 332
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/3162.