Fulmer, William E., author
Richard D. Irwin, 1980
Buku Teks
Harper, Michael C
Little, Brown and Company, 1996
Buku Teks
Taylor, Benjamin J., author
Prentice-Hall, 1987
Buku Teks
Daugherty, Carrol R., author
Houghton Mifflin, 1952
Buku Teks
Mullis, Harry A. (Harry Alvin), author
McGraw-Hill, 1938
Buku Teks