Hayes, Douglas A., author
Macmillan, 1967
Buku Teks
Amling, Frederick, author
Prentice-Hall, 1978
Buku Teks
Reilly, Frank K., author
The Dryden Press, 1997
Buku Teks
Lerner, Eugene M., author
Irwin, 1966
Buku Teks
George, F.H., author
Abacus Press, 1984
Buku Teks