1. Chinese International Travel Monitor 2016;Hotels.com,2016
2. Travel Trends: The Rise of the ‘Free Independent Traveler’ (FIT);Gadling Staff,2010
3. Top 5 Trends of Chinese Outbound Travel Market for 2016;Gentlemen in China,2016
4. By 2016, Most Digital Travel Bookers Will Use Mobile Devices;eMarketer,2015
5. UNWTO Tourism Highlights 2015 Edition;UNWTO,2015