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Gospodarka Narodowa > 2014 > 4 > 143-164
Gospodarka Narodowa. The Polish Journal of Economics > 2014 > 272 > 4 > 143-164
Journal of Agribusiness and Rural Development > 2011 > 3(21) > 35-45
Gospodarka Narodowa > 2014 > 4 > 143-164
Gospodarka Narodowa. The Polish Journal of Economics > 2014 > 272 > 4 > 143-164
Journal of Agribusiness and Rural Development > 2011 > 3(21) > 35-45