Loomis, Charles P.
Social systems: essays on their persistence and change
Van Nostrand Comp., 1967
 Buku Teks SO
Challenge and change in the information society
edited by Susan Hornby, Zoe Clarke
Facet, 2004
 Buku Teks SO
Stewart, Valerie
Change : the challenge for management
McGraw-Hill, 1983
 Buku Teks SO
Indonesia : the challenge of change
edited by Richard W. Baker [and others]
Institute of Southeast Asian Studies, 1999
 Buku Teks
Global change and challenge : geography for the 1990s
edited by Robert Bennet and Robert Estall
Routledge, 1991
 Buku Teks SO