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Market information services as a means to improve competitiveness of the food sector : the case of Bulgaria
Nikolov, Gueorgui, (1999)
Market information services in economies in transition : the case of Bulgaria
The agricultural economy and trade of Bulgaria
Bazala, Razvigor, (1969)
Ikonomiceska efektivnost na selsko stopanskata produkcija za iznos
Krǔstev, Stefan, (1966)
Vǔprosi na povišavane ravništeto na kačestvoto na produkcijata
Krǔstev, Stefan, (1980)