Santos, Roberto Lorena de Barros, Carlos Roberto Spehar, and Lucio Vivaldi. 2003. “Quinoa (Chenopodium Quinoa) Reaction to Herbicide Residue in a Brazilian Savannah Soil”. Pesquisa Agropecuaria Brasileira 38 (6): 771-76. https://doi.org/10.1590/S1678-3921.pab2003.v38.6635.