Mello, Patrícia Cavani Martins de, Ilza Lobo, and Maria Josefa Santos Yabe. 2009. “Optimization of Ultrasonic Extraction and Analyses Methodology by HPLC for Determination of Diuron and Its Metabolites in Soil Cultivation of Sugar Cane”. Semina: Ciências Exatas E Tecnológicas 30 (2):107-16. https://doi.org/10.5433/1679-0375.2009v30n2p107.