S.A. Tabatabaie, H. Ziari and M. Khalili
Asian Journal of Scientific Research 1 ( 6 ): 579 - 588 , 2008
H. Ziari, H. Behbahani, A. Izadi and H. Divandary
Journal of Applied Sciences 10 ( 23 ): 3091 - 3097 , 2010