Zilli, Jerri Édson, Romano Roberto Valicheski, Norma Gouvêa Rumjanek, Jean Luis Simões-Araújo, Francisco Rodrigues Freire Filho, and Maria Cristina Prata Neves. 2006. “Symbiotic Efficiency of Cowpea <i>Bradyrhizobium< i> Strains in Cerrado Soils”. Pesquisa Agropecuaria Brasileira 41 (5):811-18. https://doi.org/10.1590/S1678-3921.pab2006.v41.7210.