Material flow determination through agricultural machinery management . Scientia Agricola, [S. l.], v. 67, n. 4, p. 375–383, 2010. DOI: 10.1590/S0103-90162010000400001. Disponível em: https://www.revistas.usp.br/sa/article/view/22576.. Acesso em: 1 jun. 2024.