Volume 7, Issue 2, March and April 1998, Pages 49-68
Sh. Oryan; K. Parivar; A. Yekrangian; H. Hosseinzadeh
Volume 6, Issue 2, March and April 1997, Pages 63-74
Sh. Oryan; K. Parivar; A. Yekrangian; H. Hossein zadeh