دومین همایش ملی گردشگری و توسعه پایدار will be held on 2015-5-19 by Semnan University09125320704 and under the support of CIVILICA in SemnanConsidering that this conference is held officially, All articles of this conference will be indexed in the CIVILICA database, and you can confidently present your articles in this conference and use the scientific privileges of presenting the conference article by receiving the conference certificate