Alizadeh, Z., 2010, Nitrat & nitro in drinking water, Zanjan Magazine Publication, Zanjan, Iran. (In Persian)
Aronsson, P.G. & Bergstrom, L.F., 2000, "Nitrate leading from lysimeter-grown short-rotation Willow Coppice in relation to n-application and soil type", Biomass and Bioenergy, 21, 155-164.
Dimitriou, L. & Aronsson, P., 2004, "Nitrogen leading from short-rotation Willow Coppice after intensive irrigation with wastewater", Biomass and Bioenergy, 26, 433-441.
Flurry, M., Fluhler, H., Lury, W. N. & Leuenberger, L., 1994, "Susceptibility of soils to perferntial flow of water-a filed study", Water Resources Research, 1945-1954.
Oberidat, M. M., Massadeh, A.M., Ai Ajlouni A.M. & Athamanneh, F.S., 2007, "Analysis and evaluation of nitrate levels in groundwater at Al Hashimiya area", Jordan Environ. Monit. Assess., A35(1-3), 475-486.
Rabiei, B. & Mohit, A. 2013, Analyzing trial plans in agricultural research (with emphasis on SAS software), Guilan University Press. Rasht, Iran. (In Persian)
Samaras, V., Tasdila, C.O. & Stamatiad, S., 2008, "Effects of repeated application of municipal sewage sludge on soil fertility", Cotton Yield And Nitrate Leaching, Agronomy Journal, 100 (3), 477-483
Sarvari, Sh., Moezardalan, M., Khoshnood Yazdi, A. & Akhtari, M., 2012, "Effect of petrochemical mill wastewater on ogronomical and chemical characteristical of wheat in Bojanourd area", Journal of Agriculture and Plant Breeding, 8 (3), 139-147. (In Persian)
Saso, J., K., 2000, "Evaluating nitrate leaching potential for two different hydrological soil groups using a conserve ative tracer", MSc Thesis, University of Gueiph, Canada.
Statistics Center of Iran, 2009, Statistical year book of the country, Deputy Director of Strategic Planning and Control. (In Persian)
Wyatt, A. S., 2010, Non-revenue water:Financial model for optimal management in developing countries, RTI Press Publication, NC.
Yazdani, V., Ghahraman, B., Davari, K. & Fazeli, E., 2011, "The effect of wastewater on physical and chemical properties of soil", Journal of Environmental Science and Technology, 16 (1), 543-558. (In Persian).