Woods, C.A.; Kilpatrick, C.W. (2005). "Infraorder Hystricognathi". Sa Wilson, D.E.; Reeder, D.M (mga pat.). Mammal Species of the World: A Taxonomic and Geographic Reference (ika-3rd (na) edisyon). Johns Hopkins University Press. pp. 1538–1600. ISBN 978-0-8018-8221-0. OCLC 62265494. {{cite book}}: Invalid |ref=harv (tulong)CS1 maint: date auto-translated (link)