Demirhan, A. And Çağlar, M. Tourism and Income Level: Comparison of Countries by the Travel and Tourism Competitiveness Index. 2018. In Issues in Tourism, Human Rights & Sustainable Environment , IJOPEC Publications, London, 9-18.

Demirhan, A., & Çağlar, M., (2018). Tourism and Income Level: Comparison of Countries by the Travel and Tourism Competitiveness Index. Issues in Tourism, Human Rights & Sustainable Environment (pp.9-18), London: IJOPEC Publications.

Demirhan, Ayşe, And Mehmet ÇAĞLAR. "Tourism and Income Level: Comparison of Countries by the Travel and Tourism Competitiveness Index." In Issues in Tourism, Human Rights & Sustainable Environment , 9-18. London: IJOPEC Publications, 2018

Demirhan, Ayşe And Çağlar, Mehmet. "Tourism and Income Level: Comparison of Countries by the Travel and Tourism Competitiveness Index." Issues in Tourism, Human Rights & Sustainable Environment , IJOPEC Publications, 2018, pp.9-18.

Demirhan, A. And Çağlar, M. (2018) "Tourism and Income Level: Comparison of Countries by the Travel and Tourism Competitiveness Index", Issues in Tourism, Human Rights & Sustainable Environment . London: IJOPEC Publications.

@bookchapter{bookchapter, author ={Ayşe DEMİRHAN And author ={Mehmet ÇAĞLAR}, chaptertitle={Tourism and Income Level: Comparison of Countries by the Travel and Tourism Competitiveness Index}, booktitle={ Issues in Tourism, Human Rights & Sustainable Environment}, publisher={IJOPEC Publications}, city={London},year={2018} }