Hart, Lois B., author
[American Management Association;, ], 2005
eBooks
Hart, Lois B, author
AMACOM, 2005
Buku Teks
Achua, Christopher F., author
South Western Cengage Learning, 2013
Buku Teks
Zenger, John H., author
McGraw-Hill, 2004
Buku Referensi
Mackoff, Barbara, author
American Management Association, 2001
Buku Teks