Toyne, Brian
Allyn and Bacon, 1989
Buku Teks
Fayerweather, John
Prentice-Hall, 1965
Buku Teks
Johansson, Johny K., author
McGraw-Hill Irwin, 2003
Buku Teks
Cook, Thomas A., author
American Management Association, 2004
eBooks
Cook, Thomas A., author
[American Management Association;, ], 2012
eBooks