Otsubo, A. A.; Brito, O. R.; Passos, D. P.; Araujo, H. S.; Mercante, F. M.; Otsubo, V. H. N. Forms of Soil Tillage and Weed Control in Agronomic Factors and Production of Cassava. Semina: Ciênc. Agrár. 2012, 33, 2241-2246.