XIWEN, Luo; ZAIMAN, Wang. Precision Rice Hill-drop Drilling Machine. International Journal of Agricultural and Biological Engineering, [S. l.], v. 1, n. 2, 2008. Disponível em: https://ijabe.migration.pkpps06.publicknowledgeproject.org/index.php/ijabe/article/view/75. Acesso em: 27 feb. 2026.