↑Duméril, A.M.C., and G. Bibron. (1835) Erpétologie Générale ou Histoire Naturelle Complète des Reptiles, Vol. 2., Librairie Encyclopédique de Roret, Paris, 680 p.
↑ 3.03.1Bell, T. (1825) A monograph of the tortoises having a moveable sternum, with remarks on their arrangement and affinities., Zoological Journal. London. 2: 299-310.
↑ 4.04.1Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist". Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012.CS1 maint: multiple names: authors list (link) CS1 maint: extra text: authors list (link)