KÖHNE, Manfred. Perspectives of farm management economics. German Journal of Agricultural Economics, [S. l.], v. 50, n. 4, 2001. DOI: 10.52825/gjae.v50i4.1466. Disponível em: https://www.tib-op.org/ojs/index.php/gjae/article/view/1466. Acesso em: 23 nov. 2024.