Volume 13, Issue 2, September 2020, Pages 235-254
10.22059/jed.2020.302898.653356
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Volume 7, Issue 1, May 2014, Pages 95-112
10.22059/jed.2014.51557
Reza Mohamadkazemi; Reza Zaffarian; Abbas khodayari; Mehran Javadinia
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