Coyle, Daniel, author
Bantam Books, 2012
Buku Teks
Bittel, Lester Robert, author
Alexander Hamilton Institute, 1986
Buku Teks
Baldoni, John, 1952-
[American Management Association, ], 2013
eBooks
Cadwell, Charles M., author
[American Management Association, ], 2004
eBooks
Bellows, Roger, author
Prentice-Hall, 1962
Buku Teks