1. Ekotsurizumu suishinhou no kaisetsu [explanation of the ecotourism promotion Act;Aichi,2005
2. Achieving quality in ecotourism: Tools in the toolbox;Black,2007
3. Developing and implementing ecotourism guidelines for wildlands and neighboring communities in ecotourism;Blangy,1993
4. Sustainable tourism planning and management model for protected natural areas: Xishuangbanna biosphere reserve, South China;Catibog-Sinha;Asia Pacific Journal of Tourism Research,2008
5. The quest for a practical approach to morality and the tourism industry;Dimitriou;Journal of Hospitality and Tourism Management,2017