Lial, Margaret L., author
Pearson - Addison Wesley, 2008
Buku Teks
Varberg, Dale E., author
Prentice-Hall, 1991
Buku Teks
Harshbarger, Ronald J., author
Heath, 1990
Buku Teks
Wan, Frederick Y.M.
Chapman & Hall, 1993
Buku Teks
Hoffmann, Laurence D., author
McGraw-Hill, 1993
Buku Teks