Volume 18, Issue 153, July 2015, Pages 10-19
10.22038/ijogi.2015.4696
ali Azizi
Volume 14, Issue 5, November 2011, Pages 24-31
10.22038/ijogi.2011.5758
Ali Azizi; Farhad Amirian; Tahereh pashaei; Marzieh Amirian