Howell, Rate A.
Dryden Press, 1984
Buku Teks
Corley, Robert Neil
Prentice-Hall, 1974
Buku Teks
Peter C. Anderson
McGraw-Hill, 1992
Buku Teks
Miller, Roger LeRoy
Thomson West, 2007
Buku Teks
Hamilton, Robert W.
Little, Brown and Company, 1989
Buku Teks