Calter, Paul A., author
Prentice-Hall, 1993
Buku Teks
Stewart, James, 1941-, author
Brooks, 1998
Buku Teks
Lial, Margaret L., author
Addison-Wesley, 2005
Buku Teks
Washington, Allyn J., author
Pearson - Prentice Hall, 2009
Buku Teks
Grob, Bernard, author
Glencoe, 1992
Buku Teks