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Ikonomičeski problemi na nematerialnoto proizvodstvo
Vakrilov, Janko G. - 1984
Persistent link: https://www.econbiz.de/10000746544
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Povišavane na kačestvoto na rabotnata sila v NRB
Krinčev, Christo P. - 1985
Persistent link: https://www.econbiz.de/10000698754
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Pazarăt na trudai socialnata zaštita v ikonomičeskoto razvitie na Bălgarija : (1990 - 2011)
Canov, Vasil; Šopov, Georgi; Beleva, Iskra Spasova; … - 2012
Persistent link: https://www.econbiz.de/10009702010
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Bednost i obrazovanie
Baev, Stojan - In: Statistika / Nacionalen Statističeski Institut 54 (2002) 4, pp. 85-94
Persistent link: https://www.econbiz.de/10001765114
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Iz istorijata na bălgarskata nauka, prosveta i kultura prez XIX i XX v.
Christov, Christo Angelov (contributor) - 1986
Persistent link: https://www.econbiz.de/10013330352