List of Articles unit Open Access Article Abstract Page Full-Text 1 - Merging DMUs Based on of the idea Inverse DEA Elaheh Zeinodin Saeid Ghobadi 20.1001.1.25885723.2019.11.2.1.2 Open Access Article Abstract Page Full-Text 2 - Upgrading inefficient decision making units (with negative data) towards common weights (using DEA) Hossein Abbasiyan 20.1001.1.25885723.2021.13.3.1.8 Open Access Article Abstract Page Full-Text 3 - Designing an optimization model for preventing the waste time in the activity cycle of an organization M. Taleghani Y. Moddabernia