Wang Qiuyun, Jiang Wenbao and Zhao Gang
Journal of Applied Sciences 13 ( 22 ): 5410 - 5415 , 2013
Khattak Muhammad Farid, Zhao Gang, Tran Linh Khuong and Zhuang-Zhi Sun
Journal of Applied Sciences 14 ( 6 ): 501 - 509 , 2014