Attenborough, David
The life of mammals: life in the trees
BBC Worldwide Limited, 2004
 Multimedia
Black, Kenneth
Life insurance
Prentice-Hall, 1994
 Buku Teks
Mader, Sylvia S.
Inquiry into life
W.C. Brown , 1988
 Buku Teks
Dyson, Freeman J.
Origins of life
Cambridge University Press, 1999
 Buku Teks
Pough, F. Harvey
Vertebrate life
Prentice-Hall, 1999
 Buku Teks