Merritt, Davis, author
[American Management Association;, ], 2005
eBooks
Emery, Edwin, editor
Prentice-Hall, 1962
Buku Teks
Steinberg, Charles Side, author
Hastings House, 1980
Buku Teks
Lowi, Theodore J.
Macmillan, 1976
Buku Teks
Elsevier, 2016
Buku Teks