Covey, Stephen R.
The 8th Habit DVD : from effectiveness to greatness
Free Press, 2005
 Multimedia
Clear, James
The Habit Journal
Gramedia Pusaka Utama, 2022
 Buku Teks SO
Schwartz, David Joseph
Berfikir & berjiwa besar = The magic of thinking big
Pustaka Delapratasa, 1999
 Buku Teks
Schwartz, David Joseph
Berpikir dan berjiwa besar = the magic of thinking big
Binarupa Aksara, 1996
 Buku Teks SO
Arden, Paul
It's not how good you are, it's how good you want to be
Phaidon, 2003
 Buku Teks SO