Kellerman, Barbara.
Harvard Business School Press, 2004
Buku Teks
Emerald Publishing Limited, 2019
eBooks
McCoy, Charles W., author
Prentice-Hall, 2004
Buku Teks
Lehrer, Jonah, author
Serambi Ilmu Semesta, 2010
Buku Teks
Yukl, Gary A., 1940-
Pearson Education, 2006
Buku Teks