The Encyclopaedia of animal behaviour and biology
edited by Peter Slater and R. McNeill Alexander
Grolier International, 1986
 Buku Referensi
Pandey, B.N.
Ecology and animal behaviour; Vol. 4
Tata McGraw-Hill, 2012
 Buku Teks SO
McFarland, David
Animal behaviour : psychobiology, etnology, and evolution
Longman, 1993
 Buku Teks SO
Orwell, George, 1903-1950
Animal farm
Sumbu, 2001
 Buku Teks
Vernberg, F. John
The animal and the environment
Holt Rinehart and Winston, 1970
 Buku Teks