Oldoni, A., Spagnolo, R. T., Morais, C. S. de, Rocha, M. A. N. da, Machado, A. L. T., & Reis, í‚ngelo V. dos. (2017). <b>Safety index for agricultural tractors. Acta Scientiarum. Technology, 39(1), 9–15. https://doi.org/10.4025/actascitechnol.v39i1.27359