The Encyclopaedia of mammals; 2
edited by David Macdonald
Grolier International, 1993
 Buku Referensi
The Encyclopedia of mammals: 1
edited by David Macdonald
Grolier International, 1993
 Buku Referensi
Parker, Steve
Fantastic world of mammals
Miles Kelly, 2000
 Buku Referensi
Thomson, John F.
Radiation protection in mammals
Van Nostrand Reinhold, 1962
 Buku Teks SO
Attenborough, David
The life of mammals: a winning design
BBC Worldwide Limited, 2004
 Multimedia