1. Propolis, an old remedy used in modern medicine;S Castaldo;Fitoterapia,2002
2. Global meliponiculture: challenges and opportunities;M Cortopassi-Laurino;Apidologie,2006
3. Camargo JMF, Pedro SRM. Meliponini Lepeletier, 1836. In Moure, J. S., Urban, D., Melo, G. A. R. (Orgs), 2014. Catalogue of Bees (Hymenoptera, Apoidea) in the Neotropical Region–versão online. Available in: <http://www.moure.cria.org.br/catalogue> Accessed on 3 nov. 2016.
4. Ecology and Natural History of Tropical Bees;DW Roubik,1989
5. Propolis volatile compounds: chemical diversity and biological activity: a review;V Bankova;Chemistry Central Journal,2014