WASET
    Sefa Aksu and  Ünal Kızıl,  Developing a Town Based Soil Database to Assess the Sensitive Zones in Nutrient Management.   journal   = {International Journal of Geological and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    June 2015, vol. 104(8). 900 - 905
    [viewed 29 March 2024]. Available from: https://publications.waset.org/pdf/10001720.