Volume 15, Issue 29, October 2012, Pages 8-13
10.22038/ijogi.2012.57
Nahid Rahbar; Raheb Ghorbani; Elham Yahyaei
Volume 13, Issue 1, March 2010, Pages 21-26
10.22038/ijogi.2010.5869
Monireh Pourjavad; Salmeh Dadgar; Mohammad Taghi Shakeri; Mahmoud Mahmoudy