De Vries, Mary Ann
Professional secretary's encyclopedic dictionary
Prentice-Hall, 1995
 Buku Referensi
Computer ethics and professional responsibility
Terrell Ward Bynum, Simon Rogerson, editors
Blackwell Publishing, 2010
 Buku Teks SO
Dictionary of computer words
Houghton Miffiln, 1993
 Buku Referensi
Freedman, Alan
The computer glossary:the complete illustrated dictionary
Amacom, 1995
 Buku Referensi
International biographical dictionary of computer pioneers
editor, J.A.N. Lee
Fitzroy Dearborn, 1995
 Buku Referensi