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Comparative study on the competitiveness of Romanian and Bulgarian tourism industry
Berbeniciuc-Mititiuc, Adina, (2013)
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Stankova, Mariya, (2015)
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Tourism customers in Central and Eastern Europe : perspectives of development
(1994)
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Bălgarskijat turizăm : prioriteti i razvitie
Rakadžijska, Svetla, (2007)
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Technologičnite inovaci i turizmăt na Bălgarija
Rakadžijska, Svetla, (2004)
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Rakadžijska, Svetla, (2000)
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