Underhill, Brian O.
Berrett-Koehler Publishers, Inc., 2007
Buku Teks
Maxwell, John C.
Menuju Insan Cemerlang (MIC), 2015
Buku Teks
Dow Jones Asia Dialogue, 1996
Buku Teks
edited by Edward T. Reilly
[American Management Association, ], 2013
eBooks
Fernandez, Juan Antonio
John Wiley & Sons (Asia), 2006
Buku Teks