Silva, R.M.G., Brante, R.T., Santos, V.H.M., Mecina, G.F. e Silva, L.P. 2014. Phytotoxicity of ethanolic extract of turnip leaves (Raphanus sativus L.)= Fitotoxicidade do extrato etanólico de folhas de nabo (Raphanus sativus L.). Bioscience Journal . 30, 3 (mar. 2014), 891–902.