Vandome, Nick
Effective communications in easy steps
Financial World, 2012
 Buku Teks
Lewis, Lynn S.
10 steps to successful presentations
American Management Association, 2008
 eBooks
Lewis, Lynn Sparapany
10 steps to successful meetings
American Society for Training & Development, 2008
 eBooks
Adam, Bob
Start-up small business
Adams Media Corporation, 1997
 Multimedia
Camp, Jim
Start with NO (mulailah dengan berkata tidak) / Jim Camp
Kelompak Gramedia, 2002
 Buku Teks