Volume 16, Issue 69, October 2013, Pages 9-15
10.22038/ijogi.2013.1922
Hajiali Yartireh; Amir Hosein Hashemian
Volume 14, Issue 7, January 2012, Pages 51-68
10.22038/ijogi.2012.6010
Raheleh Babazadeh; Khadijeh Mirzaeei; Farideh Akhlaghi
Volume 9, Issue 1, March 2006, Pages 86-91
10.22038/ijogi.2006.5996
M Hasan zadeh