Volume 12, Issue 3, September 2011, Pages 12-16
M.H. GHAFFARI NEJAD; B. BAHARESTANI; H.R. VAFAEI; M. REZAIE
Volume 10, Issue 4, December 2009, Pages 57-59
M.H. GHAFFARI NEJAD; H.R. VAFAEY; A. SADEGHPOOR TABAIE; H.A. BASSIRI