Northcraft, Gregory B.
Organizational behaviour : a management challenge
Dryden Press, 1990
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The challenge of management
edited by Alan M. Glassman
A Wiley/Hamilton Publication, 1978
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Higgins, James M.
The management challenge : an introduction to management
Macmillan, 1994
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Stewart, Valerie
Change : the challenge for management
McGraw-Hill, 1983
 Buku Teks
Security of supply and organizational change: a european challenge
Jurnal Kajian Wilayah Eropa Vol. 4 No. 1 2008: 21-34, 2008
 Artikel Jurnal