de Carvalho, Jane Fiuza Rodrigues Portela, et al. “Isozymic Variability in a Brazilian Collection of Annatto (Bixa Orellana L.)”. Pesquisa Agropecuaria Brasileira, vol. 40, no. 7, July 2005, pp. 653-60, https://doi.org/10.1590/S1678-3921.pab2005.v40.7008.