Correia, T.P. da S., de Sousa, S.F.G., Tavares, L.A.F., Silva, P.R.A. e Riquetti, N.B. 2015. Disk harrow operational performance in three engine rotation speeds. Científica. 43, 3 (jul. 2015), 221–225. DOI:https://doi.org/10.15361/1984-5529.2015v43n3p221-225.