Panya-mito ana ukubwa gani?
Koypu
Sandro Bertolino, Aurelio Perrone, and Laura Gola (2005) Effectiveness of coypu control in small Italian wetland areas. Wildlife Society Bulletin 33 (2): 714–72.
Carter, Jacoby and Billy P. Leonard (2002) A Review of the Literature on the Worldwide Distribution, Spread of, and Efforts to Eradicate the Coypu (Myocastor coypus). Wildlife Society Bulletin 30 (1): 162–175.
Carter, J., A.L. Foote, and L.A. Johnson-Randall (1999) Modeling the effects of nutria (Myocastor coypus) on wetland loss. Wetlands 19(1): 209-219.
Lauren E. Nolfo-Clements (2006) Seasonal variations in habitat availability, habitat selection, and movement patterns of Myocastor coypus on a subtropical freshwater floating marsh. (Dissertation) Tulane University. New Orleans. ISBN 0-542-60916-9
Sheffels, Trevor and Mark Systma (2007) Report on Nutria Management and Research in the Pacific Northwest Center for Lakes and Reservoir Environmental Sciences and Resources, Portland State University.  Available on-line: 