Volume 15, Issue 21, September 2012, Pages 7-13
10.22038/ijogi.2012.5661
Mahmoud Akhavan Tafti; Robab Davar; Reza Nafisi Moghadam; Mohammad Hasan Lotfi; Mahdieh Panahande Ali
Volume 9, Issue 1, March 2006, Pages 75-80
10.22038/ijogi.2006.5994
T Nazari; L Arabi