Volume 29, Issue 3, May and June 2017, Pages 165-169
10.22038/ijorl.2017.8651
Tayebeh Kazemi
Volume 19, Issue 50, January and February 2008, Pages 207-210
10.22038/ijorl.2007.1239
Mahmoud Azarpazhooh; Farid Chekani
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