SOYSAL-KURT, Halenur. Measuring Tourism Efficiency of European Countries by Using Data Envelopment Analysis. European Scientific Journal, ESJ, [S. l.], v. 13, n. 10, p. 31, 2017. DOI: 10.19044/esj.2017.v13n10p31. Disponível em: https://test.eujournal.org/index.php/esj/article/view/9141. Acesso em: 18 apr. 2025.