Horváth A, Jónás-Berki M. Environmental and Social Responsibility Supplemented with Green Case Studies from the Side of the Tourism Service Providers. turizam [Internet]. 20. Juni 2018. [citirano 20. Septembar 2026.];22(2). Dostupno na: https://test.aseestant.ceon.rs/index.php/turizam/article/view/17527