HORBAN, Halina et al. Efficiency of Tourism Activities in Ukraine: A Regional Comparison. Journal of Environmental Management and Tourism, [S.l.], v. 11, n. 4, p. 874-882, june 2020. ISSN 2068-7729. Available at: <https://journals.aserspublishing.eu/jemt/article/view/5210>. Date accessed: 27 dec. 2024. doi: https://doi.org/10.14505//jemt.v11.4(44).11.