1. Guangzhou Institute of Science and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou 510023, Guangdong, China
2. School of Business, Macau University of Science and Technology, Macau 999078, China
3. School of Public Administration, Guangdong University of Finance, Guangzhou 510521, Guangdong, China
4. Guangdong Construction Polytechnic, Guangzhou 510440, Guangdong, China
5. Guangzhou Huashang College, Guangzhou 511399, Guangdong, China