Alcock, John
Sinauer Associates, 1989
Buku Teks
edited by Bernard Stonehouse and Christopher M. Perrins
University Park Press, 1979
Buku Teks
Krebs, J.R.
Blackwell Science, 1993
Buku Teks
Krebs, J.R.
Blackwell Scientific , 1988
Buku Teks
Dethier, V.G.
Prentice-Hall, 1962
Buku Teks