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Zagadnienia Ekonomiki Rolnej > 2012 > 1(330) > 40-61
Journal of Agribusiness and Rural Development > 2012 > 2(24) > 297-308
Communication Today > 2010 > 1 > 1 > 43-64
Zagadnienia Ekonomiki Rolnej > 2012 > 1(330) > 40-61
Journal of Agribusiness and Rural Development > 2012 > 2(24) > 297-308
Communication Today > 2010 > 1 > 1 > 43-64