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Prinuditelna gʹvkavost i nesigurnost na zaetostta : sociologičeski analiz na kačestvoto na truda v sektorite stroitelstvo i smetosʹbirane v Bălgarija
Kirov, Vasil; Markova, Ekaterina; Pejčeva, Darina - 2014
Persistent link: https://www.econbiz.de/10010532294
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Promišlenost i okolna sreda
Dimitrova, Cvetana P. (contributor) - 1993 - 1. dop. izd
Persistent link: https://www.econbiz.de/10000946970