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• parvane aval.ehsan Study of Electronic Waste Condition in Yazd City and Effect of Privatization Policies on its Amount (Case study: Computer wastes from governmental, public non-governmental and private organizations in Yazd city) [ Vol.20, Issue 4 - Winter Year 1397]
• Piran Gharni Namin.Samaneh Effect of geological formation on the quality of groundwater )Case study: Ardebil Plain ( [ Vol.20, Issue 3 - Autumn Year 1397]