Boeing, E., M. E. Nunes, M. E. Chapla, W. D. Matte, W. G. Vale, e P. A. C. Branco. “Critical Indicators in Mechanized Harvest Grains and Fiber”. Scientific Electronic Archives, vol. 10, nº 5, outubro de 2017, p. 10-17, doi:10.36560/1052017406.