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
Futuyma, Douglas J., 1942-
Sinauer Associates, 1986
Buku Referensi
edited by Bernard Stonehouse and Christopher M. Perrins
University Park Press, 1979
Buku Teks