Yokomizo, Gilberto Ken-Iti, et al. “Phenotypic Correlation Between Seed Size and Other Characteristics in Topcrosses of Vegetable Soybean With Grain Type”. Pesquisa Agropecuaria Brasileira, vol. 35, no. 11, Nov. 2000, pp. 2235-41, doi:10.1590/S1678-3921.pab2000.v35.6017.