Keeton, William T.
Biological science
W.W. Norton, 1967
 Buku Teks
Freeman, Scott
Biological science
Prentice-Hall, 2002
 Buku Teks
Keeton, William T.
Biological science
Penguin Books, 1976
 Buku Teks
Readings in biological science
edited by Irving William Knobloch
Appleton-Century-Crofts, 1967
 Buku Teks
Winchester, A.M.
Modern biological principles
D. Van Nostrand , 1965
 Buku Teks