Carvalho, Claudio Guilherme Portela de, et al. “Evaluation and Selection of Cacao Hybrids in Rondônia”. Pesquisa Agropecuaria Brasileira, vol. 36, no. 8, Aug. 2001, pp. 1043-51, doi:10.1590/S1678-3921.pab2001.v36.6228.