M.Y. Lim, W. Mahmood Mat Yunus, A. Kassim and H.N.M.E. Mahmud
American Journal of Applied Sciences 6 ( 2 ): 313 - 316 , 2009
W. Mahmood Mat Yunus, Yap Wing Fen and Lim Mei Yee
American Journal of Applied Sciences 6 ( 2 ): 328 - 331 , 2009
W.Y.W. Yusmawati and W. Mahmood Mat Yunus
American Journal of Applied Sciences 4 ( 12 ): 1024 - 1028 , 2007