Varberg, Dale E., author
Pearson - Prentice Hall, 2007
Buku Teks
Boyce, William E., author
John Wiley & Sons, 1988
Buku Teks
Bartle, Robert Gardner, 1927-, author
Scott, Foresman, 1968
Buku Teks
Stewart, James, 1941-, author
Brooks/Cole, 1999
Buku Teks
Thomas, George B., author
Addison-Wesley, 1961
Buku Teks