Santos, Carlos Antonio Fernandes. “Dispersion of Phenotypic Variability of Umbu Tree in the Brazilian Semiarid”. Pesquisa Agropecuaria Brasileira 32, no. 9 (September 1, 1997): 923–930. Accessed March 13, 2026. https://apct.sede.embrapa.br/pab/article/view/4729.