OSTROMĘCKI, A.; MANTAJ, A.; ZAJĄC, D. THE IMPORTANCE OF NON-AGRICULTURAL ECONOMIC ACTIVITY OF FARMERS IN THE MODERNIZATION PROCESS OF FARMS. Acta Scientiarum Polonorum. Oeconomia, [S. l.], v. 14, n. 4, p. 83–92, 2015. Disponível em: https://aspe.sggw.edu.pl/article/view/418. Acesso em: 22 dec. 2024.