Levinson, Harry
The exceptional executive a psychological conception
Harvard University Press, 1971
 Buku Teks SO
Levinson, Harry
The exceptional executive a psychological conception
Harvard University Press, 1971
 Buku Teks SO
Psychological assessment
American Psychological Association, 1997
 Majalah, Jurnal, Buletin
Gallagher, Richard S.
Great customer connections: simple psychological techniques that guarantee exceptional service
American Management Association, 2006
 eBooks
Aiken, Lewis R.
Psychological testing and assessment
Allyn and Bacon, 1997
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