Chambers, John Carlton, 1928-
An Executive's guide to forecasting
John Wiley & Sons, 1974
 Buku Teks
Cadwell, Charles M.
Leadership skills for managers
[American Management Association, ], 2004
 eBooks
Stettner, Morey
Skills for new managers
McGraw-Hill, 2000
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Taylor, James
A survival guide for project managers
American Management Association, 2006
 eBooks
Caroselli, Marlene
Leadership skills for managers / Marlene Caroselli
McGraw-Hill, 2000
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