Authors
Xue Bai
Department of Economic management, Guangdong Polytechnic, Foshan, China
Haoyuan Ou
Department of Information Engineer, Guangdong Polytechnic, Foshan, China
© 2018 Yi Wang, Xue Bai, Haoyuan Ou, published by Xi’an Technological University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.