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List of Articles ahmad sarlak Open Access Article Abstract Page Full-Text 1 - Investigating the Return of Scale Indicators, Technological Changes and Growth of Production Factors on the Cost in Shazand City Water and Wastewater Company Majid Karkhaneh Ahmad Sarlak Kambiz Hozhbar Kiani Open Access Article Abstract Page Full-Text 2 - The Impact of Corruption on Innovation: A Comparative Study of High and Low Corruption Asian Countries Fariba Hosseinimaram ahmad sarlak Gholam Ali Haji 10.30495/ECOMAG.1403.1107762