Volume 16, Issue 69, October 2013, Pages 16-21
10.22038/ijogi.2013.1923
Zahra Shojaeian; Zahra Dalir; Mitra Mahdavian
Volume 15, Issue 15, August 2012, Pages 23-29
10.22038/ijogi.2012.5682
Mitra Mahdavian; Hassan abbassian; Zahra Shojaeian