Klimenko Olena Yuriyivna. Trade and social policy of the state: interrelations and mutual impact (economic aspect) : к.е.н. : spec.. 08.07.05 - Економіка торгівлі та послуг : presented. 2001-12-25; popup.evolution: .; Donetsk State University of Economics and Trade. – , 0402U000265.

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