Volume 17, Issue 122, November 2014, Pages 16-22
10.22038/ijogi.2014.3578
Minoo safaei; Zahra Abedian; Seyed Reza Attarzadeh Hoseini; Seyed Reza Mazloum
Volume 15, Issue 31, December 2012, Pages 20-28
10.22038/ijogi.2012.105
Soheila Mohammadirizi; Masoumeh Kordi; Mohammad Taghi Shakeri