Volume 17, Issue 2, December 2011, Pages 243-238
Komiljon Sh. Tojibaev
Volume 12, Issue 1, August 2008, Pages 42-43
Mohammad Mehrnia
Volume 12, Issue 1, August 2008, Pages 75-77
Alireza Naqinezhad
Volume 10, Issue 1, December 2003, Pages 15-23
Ahmad Reza Khosravi