Tracy, Brian
Focal point: a proven system to simplify your life, double your productivity, and achieve all your goals
American Management Association, 2002
 eBooks
Covey, Stephen R.
The sevevn habits of highly effective people : powerfull lessons in personal change
Simon & Schuster , 1990
 Buku Teks
Monath, Norman
Kiat ampuh mewujudkan impian = Know what you want and get it / Norman Monath; penerjemah: Budi Supriyanta
Pink Books, 2004
 Buku Teks SO
Dyer, Wayne W.
10 (sepuluh) rahasia kesuksesan dan kedamaian batin
Gramedia Pustaka Utama, 2005
 Buku Teks SO
McGrath, John
You don't have to be born brilliant: anda juga bisa hebat!
Gramedia Pustaka Utama, 2006
 Buku Teks SO