Nanda, Vic, author
McGraw-Hill, 2011
Buku Teks
Machi, Lawrence A., author
Sage, 2016
Buku Teks
Livermore, David, author
Amacom, 2010
Buku Teks
Livermore, David A., 1967- , author
American Management Association;, 2010
eBooks
Bruce W. Dearstyne, editor
Neal-Schuman Publishers, Inc., 2008
Buku Teks