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↑(en) Fred B. Bercovitch, Philip S.M. Berry, Anne Dagg, Francois Deacon, John B. Doherty, Derek E. Lee, Frédéric Mineur, Zoe Muller, Rob Ogden, Russell Seymour, Bryan Shorrocks et Andy Tutchings, « How many species of giraffe are there? », Current Biology, vol. 27, no 4, , R136–R137 (ISSN0960-9822, PMID28222287, DOI10.1016/j.cub.2016.12.039, lire en ligne, consulté le ).