6Heung V C S, Kucukusta D. Wellness tourism in China: resources, development and marketing [J]. International Journal of Tourism Research, 2013, 15(4): 346-359.
7Chen K, Liu H, Chang F. Essential customer service factors and the segmentation of older visitors within wellness tourism based on hot springs hotels [J]. International Journal of Hospitality Management, 2013, 35: 122-132.