Hani, A. , Abari, S. (2011). 'Determination of Cd, Zn, K, pH, TNV, Organic Material and Electrical Conductivity (EC) Distribution in Agricultural Soils using Geostatistics and GIS (Case Study: South- Western of Natanz- Iran)'. World Academy of Science, Engineering and Technology, Open Science Index 60, International Journal of Agricultural and Biosystems Engineering, 5(12), 852 - 855.