Emerson, Tricia
The change book: change the way you think about change
American Society for Training & Development, 2011
 eBooks
Mangieri, John N.
Power Thinking: how the way you think can change the way you lead
John Wiley & Sons, Inc, 2004
 Buku Teks
Arden, Paul
Whatever you think, think the opposite
Esensi Erlangga Group, 2006
 Buku Teks
Arden, Paul
Whatever you think think the opposite
Penguin, 2006
 Buku Teks
Phillips, Jack J.
Measuring for success: what CEOs really think about learning investments
American Society for Training & Development, 2009
 eBooks