S.J. Luo, D.P. Chao, S.T. Lee and L.Y. Hsieh
Journal of Applied Sciences 13 ( 17 ): 3475 - 3482 , 2013
S.J. Luo and L.Y. Hsieh
Journal of Applied Sciences 13 ( 18 ): 3638 - 3648 , 2013