Artikel Jurnal
Newell, Michael W., author
[American Management Association;, ], 2004
eBooks
McCrea, Bridget, author
[American Management Association;, ], 2005
eBooks
Falcone, Paul, author
[American Management Association;, ], 2002
eBooks
Fieser, James, author
Oxford University Press, 2005
Buku Teks