1. Zaozhuang Vocational College, Zaozhuang 277800, Shandong, China
2. Academic Affairs and Scientific Research Division, Zaozhuang Vocational College, Zaozhuang 277800, Shandong, China
3. Department of Economics and Information Technology, Zaozhuang Vocational College, Zaozhuang 277800, Shandong, China
4. Students Affairs Office, Zaozhuang Technician College, Zaozhuang 277800, Shandong, China