Volume 19, Issue 39, February 2017, Pages 35-45
10.22038/ijogi.2017.8419
Azam Honarmandpour; Masoumeh Yaralizadeh; Masoumeh Yaralizadeh
Volume 11, Issue 3, October 2008, Pages 7-13
10.22038/ijogi.2008.5917
Mina Iravani