Shatha A. Yousif and  Qasim M. Zamil and  Hasan Y. Al Muhi and  Jamal A. Al Shammari,  Effect of Three Sand Types on Potato Vegetative Growth and Yield.   journal   = {International Journal of Agricultural and Biosystems Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2015, vol. 99(3). 300 - 303
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/10000837.