Verruma, A. A., P. R. P. Martinelli, L. M. Rabello, R. Y. Inamasu, K. E. L. Santos, G. M. Bettiol, and A. C. C. Bernardi. 2017. “SOIL AND WEED OCCURRENCE MAPPING AND ESTIMATES OF SUGARCANE PRODUCTION COST”. Revista Brasileira De Engenharia De Biossistemas 11 (1). Tup:68-78. https://doi.org/10.18011/bioeng2017v11n1p68-78.