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• Ranjbar.Hassan Construction of New Implicit Milstein-Type Scheme for Solution of the Systems of SODEs [ Vol.2, Issue 3 - Summer Year 2021]
• Ranjbar.Hassan Numerical Simulation and Methodology Based on Improved Split Step Method for Studying Stochastic Models [ Vol.2, Issue 4 - Autumn Year 2021]
• Razavyan.Shabnam Evaluating the Efficiency of Hospital Emergencies during COVID-19 Pandemic Crisis in the Presence of Undesirable Inputs in DEA [ Vol.2, Issue 3 - Summer Year 2021]
• Rostamy.Mohsen Stochastic Sensitivity Analysis in Data Envelopment Analysis [ Vol.2, Issue 4 - Autumn Year 2021]