Singer, Peter
Animal liberation: the Definitive classic of the animal movement
2009
 Buku Teks SO
The ecology of animal movement
edited by Ian R. Swingland and Paul J. Greenwood
Clarendon Press, 1983
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Animal nutrition
P. McDonald ... [et al.]
Longman, 1995
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Scott, John Paul
Animal behavior
University of Chicago Press, 1958
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Tinberger, Niko
Animal behavior
Time Life Book, 1970
 Buku Teks