Lorenzon, Maria C. A., Ângelo G. Rodrigues, and João R. G. C. de Souza. 1993. “Behavior of <i>Trigona spinipes< I> (Hymenoptera: Apidae) on Flowering Onion Fields”. Pesquisa Agropecuaria Brasileira 28 (2):217-21. https://doi.org/10.1590/S1678-3921.pab1993.v28.3868.