Volume 25, Issue 1, June 2011, Pages 13-21
10.22092/ijsr.2011.126455
G. Valizadeh; H. Rezaie; M. Ahmadpour
Volume 22, Issue 2, February 2009, Pages 155-163
10.22092/ijsr.2009.126995
G. R. Valizadeh; A. Salek Zamani
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