Ali Tavakoli Golpaygani, Siamak Najarian and Goldis Darb Emamieh
American Journal of Applied Sciences 4 ( 10 ): 815 - 820 , 2007
Goldis Darb Emamieh, Ahmad Ameri, Siamak Najarian and Ali Tavakoli Golpaygani
American Journal of Applied Sciences 5 ( 2 ): 122 - 128 , 2008
Ali Tavakoli Golpaygani, Siamak Najarian, M. Mehdi Movahedi and Goldis Darb Emamieh
American Journal of Applied Sciences 5 ( 2 ): 129 - 135 , 2008