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↑Parker,H.W. (1932) Scientific results of the Cambridge expedition to the east African lakes, 1930-31. 5. Reptiles and amphibians., J. Linn. Soc. London, Zool. 38: 213-229
↑ 4.04.1Geoffroy, l. (1827) Reptiles. In: Savigny, M. J. C. L. de, Description d’Égypte... Vol. l. Histoire Naturelle., Paris, pp. 121-160 (115-184) [1809?]
↑ 5.05.1Bisby 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)