Roubik, David Ward and Moreno Patiño, Jorge Enrique. 2018. "The Stingless honey bees (Apidae, Apinae: Meliponini) in Panama and Pollination ecology from pollen analysis." In Pot-pollen in stingless bee melittology. Vit, Patricia, Pedro, Silvia R. M., and Roubik, David W., editors. 47–66. Cham, Switzerland: Springer International Publishing. https://doi.org/10.1007/978-3-319-61839-5_4.
