Razak Wahab, Janshah Moktar, Mahmud Sudin and Hashim W. Samsi
International Journal of Agricultural Research 1 ( 1 ): 8 - 13 , 2006
Razak Wahab, Mahmud Sudin and Hashim W. Samsi
Journal of Applied Sciences 5 ( 5 ): 897 - 902 , 2005