Vale, W.G., Turra, P.H.V., Machado, T.M., De Marchi, J. e Branco, P.A.C. 2017. Energy performance of a tractor according to the escalation of gears and engine speeds. Scientific Electronic Archives. 10, 6 (dez. 2017), 20–28. DOI:https://doi.org/10.36560/1062017402.