Gw mau tau Rujukan dari Graptemys geographica. Jelasin dalam bahasa melayu

Conant, R., and J.T. Collins. (1998). Reptiles and Amphibians of Eastern and Central North America. Third Edition. Expanded. New York: Houghton Mifflin. 640 pp.  (paperback). (Graptemys geographica, pp. 167–168 + Plates 3, 6.)

Harding, J. (1997). Amphibians and Reptiles of the Great Lakes Region. Michigan: The University of Michigan Press. 400 pp. .

MacCulloch, R.D. (2002). The ROM Field Guide to Amphibians and Reptiles of Ontario. ROM/McClelland & Stewart. 168 pp. A ROM Science Publication.

Le Sueur, C.A. (1817). An Account of an American species of Tortoise, not noticed in the systems. Journ. Acad. Nat. Sci. Philadelphia 1(1):86-88 + Plate V. (Testudo geographica)

Smith, H.M., and E.D. Brodie, Jr. (1982). Reptiles of North America: A Guide to Field Identification. Golden Press. New York. 240 pp.  (paperback). (Graptemys geographica, pp. 50–51.)