Gw mau tau Nota dari Pelecaniformes. Jelasin dalam bahasa melayu

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Mayr, Gerald (2003): The phylogenetic affinities of the Shoebill (Balaeniceps rex). Journal für Ornithologie 144(2): 157–175. [English with German abstract] HTML abstract

Mortimer, Michael (2004): The Theropod Database: Phylogeny of taxa. Retrieved 14 August 2008.