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• salehi.Alireza Ranking of Non-Extreme Efficient units based on multi ideal DMUs in PPS [ Vol.9, Issue 1 - Winter Year 2021]
• sanei.masoud Analysis of returns to scale and efficiency in the financial performance of listed petrochemical companies by DEA method [ Vol.9, Issue 2 - Spring Year 2021]
• Seyfpanah.Mohhamad Identification of congestion in two-stage data envelopment analysis [ Vol.9, Issue 3 - Summer Year 2021]
• Seyfpanah.Mohhamad Ranking all of efficient units using the proposed SBM model [ Vol.9, Issue 2 - Spring Year 2021]
• Shafiee.Morteza Evaluating the Efficiency of Two-stage Networks using Ratio Analysis [ Vol.9, Issue 1 - Winter Year 2021]
• Shafiee.Morteza Evaluating the Efficiency of Two-stage Networks using Ratio Analysis [ Vol.9, Issue 1 - Winter Year 2021]
• Shahnazi.Samane Investigating the effect of weight restrictions on estimating returns to scale in convex technologies [ Vol.9, Issue 4 - Autumn Year 2021]
• shahriari.shahla Analysis of the performance of symbols of cement companies in the Tehran Stock Exchange, using data envelopment analysis based on integer indices [ Vol.9, Issue 1 - Winter Year 2021]
• shahriari.shahla Enterprise Resource Planning Selection based on a Preference Voting and Data Envelopment Analysis [ Vol.9, Issue 3 - Summer Year 2021]
• shahriari.shahla Regional efficiency in the tourism industry based on global development indicators using data envelopment analysis [ Vol.9, Issue 2 - Spring Year 2021]
• Shiri Daryani.Zahra Input Estimation in Two-Stage Systems with Undesirable Outputs Based on Cost Efficiency [ Vol.9, Issue 4 - Autumn Year 2021]