Nowak, Ronald M.
Walker's mammals of the world : 4th edition : volume II
The Johns Hopkins University Press, 1983
 Buku Referensi
Nowak, Ronald M.
Walker's mammals of the world : 4th edition : volume I
The Johns Hopkins University Press, 1983
 Buku Referensi
The Encyclopaedia of mammals
edited by David Macdonald
Facts on File, 1993
 Buku Referensi
Reproduction in mammals / edited by C.R. Austin, R.V. Short
Cambridge University Press, 1982
 Buku Teks
Young, J.Z.
The life of mammals: their anatomy and physiology / J.Z. Young with the assistance of M.J. Hobbs
Clarendon Press, 1975
 Buku Teks