A. D. Woldeyohannes and M. A. A. Majid
Journal of Applied Sciences 11 ( 9 ): 1612 - 1617 , 2011
M. A. A. Majid, M. Muhammad and N. I. Y. Yem
Journal of Applied Sciences 11 ( 11 ): 2058 - 2062 , 2011
Joko Waluyo and M. Amin A. Majid
Journal of Applied Sciences 11 ( 9 ): 1642 - 1647 , 2011