↑Gray,J.E. (1873) On the original form, development, and cohesion of the bones of the sternum of chelonians; with notes on the skeleton of Sphargis., Ann. Mag. nat. Hist. (4) 11: 161-172
↑Gray,J.E. (1857) Notice of some Indian tortoises (including the description of a new species presented to the British Museum by Professor Oldham)., Ann. Mag. Nat. Hist. (2) 19: 342-344
↑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.
↑ 5.05.15.2Gray, J. E. (1831) Synopsis Reptilium or short descriptions of the species of reptiles. Part I: Cataphracta, tortoises, crocodiles, and enaliosaurians., Treuttel, Wurz & Co., London, 85 pp.
↑ 6.06.1Bisby 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)
