Abdurahman ., H. Nour, Rosli ., Mohd Yunus and Zulkifly Jemaat
Journal of Applied Sciences 6 ( 9 ): 2060 - 2066 , 2006
Abdurahman H, H. Nour and Rosli, M. Yunus
Journal of Applied Sciences 6 ( 8 ): 1868 - 1872 , 2006