SABEV, Nikola. CONTEMPORARY ISSUES AND PROBLEMS IN RECOGNITION OF PROFESSIONAL QUALIFICATIONS IN BULGARIA AND THE EUROPEAN UNION. KNOWLEDGE - International Journal , [S. l.], v. 16, n. 2, p. 589–593, 2017. Disponível em: https://ikm.mk/ojs/index.php/kij/article/view/4356. Acesso em: 20 apr. 2024.