Jaroszewska, Joanna, and Robert Pietrzykowski. “DYNAMICS OF LABOUR PRODUCTIVITY CHANGES IN AGRICULTURE AT THE REGIONAL LEVEL IN SELECTED EUROPEAN UNION COUNTRIES”. Acta Scientiarum Polonorum. Oeconomia 17, no. 2 (June 30, 2018): 59–68. Accessed January 26, 2026. https://aspe.sggw.edu.pl/article/view/268.