Volume 2-26, Issue 2, October 2010, Pages 113-119
A.H Shahpar; H.Z. Aashtiani; A. Babazadeh
Vol . 22, Issue 33, June 2006, Pages 31-36
H. Zokaei Ashtiani; E. Mazlomi
Vol. 20, Issue 27, May 2004, Pages 10-18
S. A. Seyed Vakili; H. Zokaei Ashtiani