Radwan, Andrzej. “LABOUR RESOURCES AND PRODUCTION-ECONOMIC RESULTS OF SOCIAL FARMS IN POLAND”. Acta Scientiarum Polonorum. Oeconomia 8, no. 2 (June 30, 2009): 121-132. Accessed May 5, 2024. https://js.wne.sggw.pl/index.php/aspe/article/view/3831.