Brophy, Peter
The library in the twenty-first century : new services for the information age
Library Association Publishing, 2002
 Buku Teks SO
Kitahara, Yasusada
Information network system : telecommunications in the twenty-first century / Yasusada Kitahara
Heinemann Educational Books, 1983
 Buku Teks SO
Kitahara, Yasusada
Information network system : telecommunications in the twenty-first century / Yasusada Kitahara
Heinemann Educational Books, 1983
 Buku Teks SO
Statistics for the twenty-first century
edited by Florence S. Gordon and Sheldon Gordon
Mathematical Association of America, 1992
 Buku Teks SO
Communication in the twenty-first century
edited by George Gerbner, Richard B. Byrne
John Wiley & Sons, 1981
 Buku Teks