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 Scientific , 1988
Buku Teks
Krebs, J.R.
Blackwell Science, 1993
Buku Teks
Dethier, V.G.
Prentice-Hall, 1962
Buku Teks