Pianka, Eric R.
Harper & Row, 1988
Buku Teks
Futuyma, Douglas J., 1942-
Sinauer Associates, 1986
Buku Teks
Smith, John Maynard
Oxford University Press, 1989
Buku Teks
edited by Bernard Stonehouse and Christopher M. Perrins
University Park Press, 1979
Buku Teks
Futuyma, Douglas J., 1942-
Sinauer Associates, 1986
Buku Referensi