Challenge and change in the information society
edited by Susan Hornby, Zoe Clarke
Facet, 2004
 Buku Teks
Stewart, Valerie
Change : the challenge for management
McGraw-Hill, 1983
 Buku Teks
Indonesia : the challenge of change
edited by Richard W. Baker [and others]
Institute of Southeast Asian Studies, 1999
 Buku Teks
Saaty, Thomas L.
Embracing the future : meeting the challenge of our changing world
Praeger, 1990
 Buku Teks
Global change and challenge : geography for the 1990s
edited by Robert Bennet and Robert Estall
Routledge, 1991
 Buku Teks SO