KOLEV DIMANOV, Daniel. COMPARATIVE ADVANTAGES OF BULGARIA IN INTERNATIONAL TRADE IN SERVICES FOR THE PERIOD 2011-2020. KNOWLEDGE - International Journal , [S. l.], v. 49, n. 1, p. 207–213, 2021. Disponível em: https://ojs.ikm.mk/index.php/kij/article/view/4635. Acesso em: 30 sep. 2026.