Escobar, José Ricardo. “Effective Female Flower Variation Estimate of Guarana Tree Paullinia Cupana Var. Sorbilis”. Pesquisa Agropecuaria Brasileira 20, no. 12 (April 16, 2014): 1365–1371. Accessed October 14, 2026. https://apct.sede.embrapa.br/pab/article/view/16386.