Anderson, Daniel
Brooks/Cole, 1999
Buku Teks
Wheeler, Ruric E.
John Wiley & Sons, 1996
Buku Teks
Zehna, Peter W.
Prentice-Hall, 1982
Buku Teks
Varberg, Dale E.
Pearson - Prentice Hall, 2007
Buku Teks
Boyce, William E.
John Wiley & Sons, 1988
Buku Teks