Helmi Zulhaidi Mohd Shafri and Mohanad Saad Ezzat
American Journal of Agricultural and Biological Sciences 4 ( 3 ): 187 - 191 , 2009
Helmi Zulhaidi Mohd Shafri, Affendi Suhaili and Shattri Mansor
Journal of Computer Science 3 ( 6 ): 419 - 423 , 2007
Helmi Zulhaidi Mohd Shafri and Redzuan Md Zeen
Research Journal of Environmental Sciences 5 ( 6 ): 587 - 594 , 2011