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