Klotz. James M., author
Kluwer, 2008
Buku Teks
Harvard Business School Press, 2000
Buku Teks
Luecke, Richard, author
[American Management Association;, ], 2010
eBooks
Leritz, Len, author
[American Management Association;, ], 1994
eBooks
Shin, Edysen, author
Alfa Cemerlang Edindo (AceLearnings), 2016
Buku Teks