Brandon/Systems Press, 1970
Buku Teks
Keyes, Ruth A., author
Prentice-Hall, 1986
Buku Teks
by Donald Greenberg [and others]
Addison-Wesley, 1982
Buku Teks
Julian, Maureen M., author
CRC Pres, 2008
Buku Teks
Bronzing, Joseph D.
Addison-Wesley, 1982
Buku Teks