STOJANOV, Evgenij. SOME PROBLEMS OF BULGARIAN CULTURAL TOURISM. Challenges of Tourism and Business Logistics in the 21st Century, [S. l.], v. 3, n. 1, 2018. Disponível em: https://js.ugd.edu.mk/index.php/YFNTS/article/view/2345. Acesso em: 6 sep. 2026.