Coba jelasin Rujukan dari Graptemys nigrinoda dalam bahasa melayu dong

Cagle, F.R. 1954. Two New Species of the Genus Graptemys. Tulane Studies in Zoology 1 (11): 165-186.

Conant, R. 1975. A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition. Houghton Mifflin. Boston. xviii + 429 pp. + 48 plates.  (hardcover),  (paperback). (Graptemys nigrinoda, p. 59 + Plate 8 + Map 17.)

Smith, H.M., and E.D. Brodie, Jr. Reptiles of North America: A Guide to Field Identification. Golden Press. New York. 240 pp.  (paperback). (Graptemys nigrinoda, pp. 52–53.)