Santos, Carlos Antonio Fernandes, Marciene Amorim Rodrigues, and Maria Imaculada Zucchi. 2008. “Genetic Variability of Umbu Trees in Brazilian Semi-Arid Region, Based on AFLP Markers”. Pesquisa Agropecuaria Brasileira 43 (8):1037-43. https://doi.org/10.1590/S1678-3921.pab2008.v43.234.