A cost prediction model for machine operation in multi-field production systems . Scientia Agricola, [S. l.], v. 73, n. 5, p. 397–405, 2016. DOI: 10.1590/0103-9016-2015-0304. Disponível em: https://revistas.usp.br/sa/article/view/119288.. Acesso em: 30 apr. 2024.