Hassanoghli, A. R., Liaghat, A., Mirabzadeh, M. (2002). 'Effect of Water Reuse on Organic Matter Concentration of Soil and its Self Purification', Journal of Water and Wastewater; Ab va Fazilab ( in persian ), 13(2), pp. 2-11. doi: 10.22093/wwj.2002.176023