Awuah, G. B. Reinert, V. (2011). Potential tourists’ Image of a tourist destination: The case of Brazil, Research on Technology, Innovation and Marketing Management 2009‐2011: Introducing the Research Area of Innovation Science / [ed] Sven-Åke Hörte, Halmstad: Högskolan i Halmstad, 3(2011): 135-148.
Boley, B.B. (2009). Geotourism in the crown of the continent: developing and testing the geotourism survey instrument (GSI). Thesis master of science in recreation management. The University of Montana
Missoula, Missoula.
Buhalis, D. Amaranggana, A. (2013). Smart Tourism Destinations, Springer International Publishing Switzerland 2013.
Giriwati, N. Homma, R. Iki, K. (2013). Urban tourism: designing a tourism space in a city context for social sustainability, WIT Transactions on Ecology and The Environment, Vol 179, © 2013 WIT Press.
Ginty, C .(2010). An Examination of the Marine Tourism Business Sector in the West of Ireland: Capabilities, Performance and Contribution to the Regional Economy, A thesis submitted in partial fulfilment of the requirements of HETAC for the degree of Doctor of Philosophy.
Jamieson, W. Noble, A. (2000). A Manual for Sustainable Tourism Destination Management, Available online: http://www.gdrc.org/uem/eco-tour/etour-principles.html (accessed on 10 May 2015).
Kim, C.(2016). New Horizons on Sustainable Tourism in Mega-Cities, The 10th UNWTO/PATA Forum on Tourism Trends and Outlook Guilin, China, 20-21 October 2016.
Lorant, D. Zoltan, B .(2005). Environmentally sustainable tourism: international and Hungarian relations, gazdálkodás, 53(23) :80-91.
Lourens, M .(2007). The Underpinnings for Successful Route Tourism Development in South Africa, Dissertation submitted to the University of the Witwatersrand, School of Geography, Archaeology and Environmental Studies in fulfilment of the requirements for the degree of Masters of Tourism.
Marika, V .(2013). Ecotourism and Sustainability: Social Impacts on Rural Communities Case: San Luis Potosí, Mexico, Laurea University of Applied Sciences, Laurea Kerava.
Mazurek, M .(2014). Competitiveness in Tourism – Models of Tourism Competitiveness and Their Applicability: Case Study Austria and Switzerland, European Journal of Tourism, Hospitality and Recreation Special Issue, 1(2014): 73-94.
Navickas, V. Malakauskaite, A .(2009). The possibilities for the identification and evaluation of tourism sector competitiveness factors. Engineering Economics, 1(61): 38–44.
Neckermann, W .(2013). Sustainable Development of a Tourism Destination: Realism or Idealism?“Evaluating the sustainability of a destination development projectthrough community-based ecotourism”,Case Study: SC WiSATA project in Flores, East Nusa Tenggara Province, Indonesia, A dissertation by Wout Neckermann, Student at the NHTV University of Applied Sciences, To obtain the Master programme diploma in Tourism Destination Management.
Pekkala, E .(2015). Developing sustainable tourism on the Mediterranean island of Malta, Bachelor’s Thesis Degree Programme in Tourism 2015, Haaga-helia university of applied sciences.
United Nations Environment Programme (UNEP) and World Tourism Organization (UNWTO) .(2012).
World Tourism Organization (UNWTO) .(2013). Sustainable Tourism for Development Guidebook, Enhancing capacities for Sustainable Tourism for development in developing countries, European Union.
World Economic Forum .(2015). The Travel & Tourism Competitiveness Report 2015, Growth through Shocks, Global Competitiveness and Risks team and the Industry Partnership Programme for Aviation & Travel.
Zamfir, A. Corbos, R. A .(2015). Towards Sustainable Tourism Development in Urban Areas: Case Study on Bucharest as Tourist Destination, Sustainability , 7(2015): 12709-12722.
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