Michelli, Joseph A., 1960-
The zappos experience : 5 principles to Inspire, engage, and WOW
McGraw-Hill, 2012
 Buku Teks
Bingham, Tony
The new social learning : connect. collaborate. work.
ATD Press, 2015
 Buku Teks SO
Lucas, Bob
Engage your brain for learning: training basics
American Management Association, 2008
 eBooks
Cross, Jay
Informal learning : rediscovering the natural pathways that inspire innovation and performance / Jay Cross.
Pfeiffer/Wiley, 2007
 Buku Teks
Toynbee, Arnold J., translator
Experiences
Osford University Press, 1969
 Buku Teks