Volume 31, Issue 2, July 2020, Pages 1-24
10.22108/gep.2020.122611.1292
Ali Mehrabi; sadegh karimi; majid safipour
Volume 29, Issue 4, January 2019, Pages 19-34
10.22108/gep.2018.98275.0
fatemeh shahryar; amir gandomkar; rahim hashempour
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