Ramos, Maria Lucrecia Gerosa, Richard Parsons, and Janet Irene Sprent. 2005. “Differences in Ureide and Amino Acid Content of Water Stressed Soybean Inoculated With Bradyrhizobium Japonicum and B. Elkanii”. Pesquisa Agropecuaria Brasileira 40 (5): 453-58. https://doi.org/10.1590/S1678-3921.pab2005.v40.6978.