1. a College of History, Culture and Tourism, Fuyang Normal University, Fuyang, Anhui 236037, China
2. b Yuexiu Institute of Hospitality Administration, Zhejiang Yuexiu University, Shaoxing, Zhejiang 312030, China
3. c Department of Tourism and Geographical Sciences, Baicheng Normal University, Baicheng, Jilin 137000, China