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• Sabour.Mohamad reza Determination of appropriate method for estimating of MTBE absorption coefficient by the soil of Tehran oil refinery (Ray city) [ Vol.7, Issue 20 - Summer Year 1388]
• Saeedi.Mohsen Environmental impact assessment guideline for rail way transportation projects [ Vol.7, Issue 19 - Spring Year 1388]
• Sekhavatjou.Mohammad Sadegh Environmental impact assessment guideline for rail way transportation projects [ Vol.7, Issue 19 - Spring Year 1388]
• Shemshad.masoomeh Study of Ecotourism Development Measuring in Natural Resources Cooperatives and Effective Factors on it in Golestan Province [ Vol.7, Issue 21 - Autumn Year 1388]