KALEVA, Monika; GERENOVA, Zhulieta. DEVELOPMENT OF HEALTH TOURISM IN BULGARIA. KNOWLEDGE - International Journal , [S. l.], v. 73, n. 1, p. 217–221, 2025. Disponível em: https://ojs.ikm.mk/index.php/kij/article/view/7906. Acesso em: 6 oct. 2026.