Principles of sustainable development refers to the environmental aspects, economic and socio-cultural tourism development, and a suitable balance must be established between these three dimensions to guarantee sustainable long its length (Page and Connell, 2008) .Nguyen principles of sustainable development refers to the environmental aspects, economic, socio-cultural and tourism development, and a suitable balance must be established between these three dimensions to guarantee its long-term sustainability (Page and Connell, 2008).
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