A. Lennie, H. Abdullah, S. Shaari and K. Sopian
American Journal of Applied Sciences 6 ( 12 ): 2043 - 2049 , 2009
H. Abdullah, A. Lennie, M.J. Saifuddin and I. Ahmad
American Journal of Engineering and Applied Sciences 2 ( 1 ): 189 - 193 , 2009
H. Abdullah, N.P. Ariyanto, S. Shaari, B. Yuliarto and S. Junaidi
American Journal of Engineering and Applied Sciences 2 ( 1 ): 236 - 240 , 2009
American Journal of Engineering and Applied Sciences 2 ( 2 ): 297 - 303 , 2009
H. Abdullah, M. N. Norazia, S. Shaari, M. Z. Nuawi and N. S. Mohamed Dan
American Journal of Engineering and Applied Sciences 3 ( 1 ): 171 - 179 , 2010
H. Abdullah, R. Silvia and J. Syarif
Asian Journal of Applied Sciences 2 ( 2 ): 191 - 196 , 2009
S.N.F. Zainudin, M. Markom, H. Abdullah, R. Adami and S.M. Tasirin
Asian Journal of Applied Sciences 4 ( 4 ): 331 - 342 , 2011
H. Abdullah, A. Lennie and I. Ahmad
Journal of Applied Sciences 9 ( 6 ): 1180 - 1184 , 2009
A.N. Jannah, S.A. Halim and H. Abdullah
Journal of Applied Sciences 9 ( 11 ): 2190 - 2193 , 2009
Journal of Applied Sciences 14 ( 9 ): 965 - 968 , 2014
Journal of Applied Sciences 8 ( 23 ): 4428 - 4433 , 2008