Varberg, Dale E.
Pearson/Prentice-Hall, 2007
Buku Teks
Finney, Ross L.
Addison-Wesley, 1994
Buku Teks SO
Boyce, William E.
John Wiley & Sons, 1988
Buku Teks SO
Bartle, Robert Gardner, 1927-
Scott, Foresman, 1968
Buku Teks SO
Stewart, James, 1941-
Brooks/Cole, 1999
Buku Teks