Silva, F. O. da, B. F. Viana, D. Bôscolo, and R. L. Santos. “Foraging Activity of Xylocopa Cearensis (Ducke) in Sand Dune Landscape”. Sociobiology, vol. 66, no. 1, Apr. 2019, pp. 190-3, doi:10.13102/sociobiology.v66i1.3446.