Tracy, Brian
Time power: a proven system for getting more done in less time than you ever thought possible
American Management Association, 2004
 eBooks
O`Malley, Michael
Every leader is an artist : how the world's gratest artists can make you a more creative leader
McGraw-Hill, 2012
 Buku Teks SO
Tator, Rosemary
More time for you: a powerful system to organize your work and get things done
[American Management Association, ], 2011
 eBooks
Tracy, Brian
Time power
Amacom, 2004
 Buku Teks
Mancini, Marc
Time management
McGraw-Hill, 2003
 Buku Teks SO