Tham khảo Apoidea

Tham khảo Apoidea

Engel, M.S. (2005). Family-group names for bees (Hymenoptera: Apoidea). American Museum Novitates 3476: 1-33.
Grimaldi, D. và Engel, M.S. (2005). Evolution of the Insects. Cambridge University Press. ISBN 0-521-82149-5.
Michener, C.D. (2000). The Bees of the World. Johns Hopkins University Press.

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WikiPedia: Apoidea http://www.bombus.it/pdf/fiori_e_api/fiori_e_api.p... http://bugguide.net/node/view/475348 http://www.earthlife.net/insects/solbees.html http://www.discoverlife.org/20/q?search=Apoidea