Calvert, James, author
McGraw-Hill, 1994
Buku Teks
Johson, David B., author
Grove Brooks/Cole, 1999
Buku Teks
Goldstein, Larry Joel, author
Prentice-Hall, c1984.
Buku Teks
Lial, Margaret L., author
Addison-Wesley, 2005
Buku Teks
by Robert V. Hog ... [and others]
Cummings, 1974
Buku Teks