KHOVALKO, Anna. Prospects of the karst-speleological national park “Podillia Speleoregion” establishment and operation. Journal of Geography, Politics and Society, [S. l.], v. 6, n. 4, p. 45–51, 2016. Disponível em: https://czasopisma.bg.ug.edu.pl/index.php/JGPS/article/view/3662. Acesso em: 2 may. 2024.