List of Articles Open Access Article Abstract Page Full-Text 1 - Internet network design for quality of service guarantee using Data Envelopment Analysis (DEA) Elham Alipour Chavari Mohsen Rostamy-Malkhalifeh Open Access Article Abstract Page Full-Text 2 - Performance Evaluation of Decision Making Units Using Data Envelopment Model and Artificial Neural Network (Case Study: Fars Regional Water Corporation) Morteza shafiee Saeedeh Akbarpoor Sara Salari Dargi Open Access Article Abstract Page Full-Text 3 - A One-Model Method Based on a Relaxed Combination of Inputs for Congestion Assessment in Interval Data Envelopment Analysis Masoumeh Hajiani Reza Fallahnejad Open Access Article Abstract Page Full-Text 4 - A two-stage study of grey system theory and DEA in strategic alliance: An application in Vietnamese Steel industry Hoang-Phu Nguyen Nhu-Ty Nguyen Open Access Article Abstract Page Full-Text 5 - Efficiency score assessment of Iranian automotive and food Industries Malek Hassanpour Open Access Article Abstract Page Full-Text 6 - Application of Data Envelopment Analysis Method to Study the Dust Phenomenon in Lorestan Province Saeed Papi Noushin Birjandi Zahra Cheraghali Ebrahim Moradifard