List of Articles Keywords: Energy Open Access Article Abstract Page Full-Text 1 - Evaluation of Energy Efficiency, Emission of Greenhouse Gases and Production Function in Olive (Olea europaea) Production in Ilam Province, Iran MEYSAM MORADI ABBAS MALEKI SADEGH BAHAMIN SHOHREH AZIZI SHAMILA ROUHANI SARA BEIGZADEH 10.30486/roce.2021.703842 Open Access Article Abstract Page Full-Text 2 - Evaluation the Effect of Conservation Tillage on Sunflower Yield and Energy Productivity 10.30486/roce.2019.692748