Y. Himri, A. Boudghene Stambouli and B. Draoui
American Journal of Environmental Sciences 4 ( 6 ): 589 - 594 , 2008
R. Mehdaoui, M. Elmir, B. Draoui, O. Imine and A. Mojtabi
Journal of Applied Sciences 6 ( 14 ): 2866 - 2874 , 2006