N. Mohamed, M.N. Shamsudin, A.N.A. Ghani, A. Radam, S. Kaffashi, N.N.R.N.A. Rahim and N.H. Bin Hassin
Journal of Applied Sciences 12 ( 17 ): 1859 - 1864 , 2012
K. Ibrahim, M.N. Shamsudin, R. Yacob and A. Radam
Trends in Applied Sciences Research 9 ( 9 ): 522 - 533 , 2014