Chung-Li Chou, Yung-Fu Huang and Hung-Fu Huang
Journal of Engineering and Applied Sciences 2 ( 1 ): 143 - 148 , 2007
Chih-Sung Lai, Yung-Fu Huang and Hung-Fu Huang
Journal of Engineering and Applied Sciences 2 ( 1 ): 149 - 156 , 2007