John Locke : an essay concerning human understanding in fokus / edited by Gary Fuller, Robert Stecker and John P. Wright
Routledge, 2000
 Buku Teks
Chambers, John Carlton, 1928-
An Executive's guide to forecasting
John Wiley & Sons, 1974
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Jones, Manley Howe
Executive decision making / by Manley Howe Jones
Ill Irwin , 1957
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The executive guide to integrated talent management
Kevin Oakes and Pat Galagan, editors
American Society for Training & Development, 2011
 eBooks
Mahoney, Thomas A.
Building the executive team : a guide to management development
Prentice-Hall, 1961
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