Volume 2, Issue 1, December 2001, Pages 44-46
M.A YOUSEFNIA; M JANATI
Volume 1, Issue 2, March 2000, Pages 141-148
M. H. NAJMABADI; M.A YOUSEFNIA; M. GHAFFARIPOUR
Volume 1, Issue 2, March 2000, Pages 153-158
M.A YOUSEFNIA; H. HOSEIN-NEJAD