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Lua i Stíl Chicago (17ú heag.)Garibaldi, Pietro, Mattia Makovec, agus Gabriella Stoyanova. From Transition to EU Accession: The Bulgarian Labor Market During the 1990s. Washington, D.C: World Bank, 2001.
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Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.