BOYKOV, V. M.; STARTSEV, S. V.; VOROTNIKOV, I. L. Improving the technology and primary tillage plow. Amazonia Investiga, [S. l.], v. 8, n. 22, p. 539–549, 2019. Disponível em: https://amazoniainvestiga.info/index.php/amazonia/article/view/795. Acesso em: 22 jul. 2024.