Ebenhack, Amanda (2009). Redfoots and Yellowfoots; The Natural History, Captive Care, and Breeding of 'Chelonoidis carbonaria' and 'Chelonoidis denticulata' (Turtles of the World, Testudinidae, Number 3). Living Art Publishing. ISBN0978755634.
Fritz Uwe (2007). "Checklist of Chelonians of the World"(PDF). Vertebrate Zoology. 57 (2): 269–270. ISSN 18640-5755. Diarkibkan(PDF) daripada yang asal pada 2010-12-17. Dicapai pada 29 May 2012. Unknown parameter |coauthors= ignored (|author= suggested) (bantuan)
Moskovits, Debra K. (1985). "The Behavior and Ecology of the Two Amazonian Tortoises, Geochelone carbonaria and Geochelone denticulata, in Northwestern Brazil". University of Chicago. PhD Dissertation.
Pritchard, Peter C. H. (1984). The Turtles of South America, Contributions to Herpetology: No. 2. Society for the Study of Amphibians and Reptiles. Unknown parameter |coauthors= ignored (|author= suggested) (bantuan)
Alderton, David. Turtles and Tortoises of the World. New York: Facts on File Publications,1988. ISBN 9780816017331.
Halliday, Dr. Tim, and Dr. Kraig Adler, eds. The Encyclopedia of Reptiles and Amphibians. New York: Facts on File Publications, 1986. ISBN 0-8160-1359-4.
Hagan, J.W. "What's the Difference: Differentiating Geochelone denticulata and Geochelone carbonaria" Tortuga Gazette 1989. [1]