PORTELA, Fábio. Protein and oil content of soybean, from a national experiment. Pesquisa Agropecuaria Brasileira, [S. l.], v. 17, n. 3, p. 345–350, 2014. DOI: 10.1590/S1678-3921.pab1982.v17.15639. Disponível em: https://apct.sede.embrapa.br/pab/article/view/15639. Acesso em: 7 dec. 2025.