Harmon, Paul, author
Business process change : a business process management guide for managers and process professionals
Elsevier, 2014
 eBooks
Collins business French : the ideal guide for doing business in French
edited by Stephen Clarke
Harper Collins, 1992
 Buku Referensi
Bailey, Edward P., author
Writing & speaking at work: a practical guide for business communication
Prentice-Hall, 2002
 Buku Teks
Paulson, Edward, author
The complete ideal's guide starting your own business
Prenada Media, 2003
 Buku Teks
Mattel, Bruce, author
Catering : a guide to managing a successful business operation
John Wiley & Sons, 2008
 Buku Teks