THE ROLE OF TOURISM IN THE WORLD, A COMPARISON OF ASIAN AND EUROPEAN TOURISM SERVICES AND AN EXAMINATION OF CERTAIN TOURISM PROBLEMS. World Bulletin of Social Sciences, [S. l.], v. 18, p. 61–64, 2023. Disponível em: https://www.scholarexpress.net/index.php/wbss/article/view/1999. Acesso em: 18 apr. 2026.