Arthur, Jay, 1951-
Lean six sigma for hospitals : simple steps to fast, affordable, and flawless healthcare
McGraw-Hill, 2011
 Buku Teks
Bennett, Greg
Consultative closing: simple steps that build relationships and win even the toughest sale
American Management Association;;, 2007
 eBooks
Hauptly, Denis J.
Something really new: three simple steps to creating truly innovative products
American Management Association, 2008
 eBooks
Calbom, Cherie
The wrinkle cleanse : 4 simple steps to a softer, younger-looking skin
Avery, 2005
 Buku Teks SO
Giampala, Vincent
The Anti-aging solution: 5 simple steps to looking and feeling young
John Wiley & Sons,INC, 2004
 Buku Teks SO