Razeqi,N. , , Karbasi,A. R. , , Mehrdadi,N. , and Beigi Habibabadi,A. . "An Investigation on Soil Pollution in Siahrud River Catchment Area", Journal of Water and Wastewater; Ab va Fazilab (in persian), 13, 3, 2002, 7-16. doi: 10.22093/wwj.2002.176054