Volume 20, Issue 54, January and February 2009, Pages 217-220
10.22038/ijorl.2009.807
Mohsen Rajati Haghi; Mehrangiz Kaboli
Volume 20, Issue 51, March and April 2008, Pages 51-54
10.22038/ijorl.2008.1248
Mohsen Rajati Haghi; Nazanin Abdali
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