Brophy, Peter
The library in the twenty-first century : new services for the information age
Library Association Publishing, 2002
 Buku Teks
Kitahara, Yasusada
Information network system : telecommunications in the twenty-first century / Yasusada Kitahara
Heinemann Educational Books, 1983
 Buku Teks
Communication in the twenty-first century
edited by George Gerbner, Richard B. Byrne
John Wiley & Sons, 1981
 Buku Teks
Russel, Fox Hon
Justice in the twenty-first century
Covendish Publishing Limited, 2000
 Buku Teks
Public administration for the twenty-first century
by Phillip J. Cooper [and others]
Harcourt, Brace, 1998
 Buku Teks