Volume 12, Issue 1, March 2009, Pages 1-6
10.22038/ijogi.2009.5897
Mansoureh Vahdat; Maryam Aghaee; Amin Setarehdan
Volume 11, Issue 3, October 2008, Pages 57-61
10.22038/ijogi.2008.5924
Mansoureh Vahdat; Maryam Aghaee; Yaser Ghavami