SANDIK, E. Classification green tourism in southern Ukraine. Theory and practice of design, [S. l.], n. 5, p. 94–99, 2014. DOI: 10.18372/2415-8151.5.9950. Disponível em: https://jrnl.nau.edu.ua/index.php/Design/article/view/9950. Acesso em: 20 feb. 2025.