Bernard T. Widjaja, author
Gramedia Pustaka Utama, 2009
Buku Teks
Mathieson, Rick, author
[American Management Association;, ], 2010
eBooks
David Newman
[American Management Association, ], 2013
eBooks
Goldstein, Beth, author
McGraw-Hill, 2007
Buku Teks
McDonald, Mlcolm, author
John Wiley & Sons, 2011
Buku Teks