21
by Graham, Stedman
Published 2012
FT Press

22
by Zilko, Dave
Published 2016
John Wiley & Sons, Inc.

23
by Clabby, John F.
Published 2007
Center for Cryptologic History, National Security Agency

24
by Perkins, John
Published 2004
Berrett-Koehler Publishers

25
by Imam, Razi
Published 2010
John Wiley & Sons

26
by Kaufman, Lloyd
Published 2009
Focal Press/Elsevier

27
by Lowe, Janet
Published 2009
John Wiley & Sons

28
by Hawk, Tony
Published 2010
John Wiley & Sons

29
by Colangelo, Jerry
Published 1999
Amacom

30
by McCallie, Joanne P., Rains, Rob
Published 2012
Wiley

32
by Lennick, Doug
Published 2013
FTPress Delivers

33
by Williams, Sam
Published 2002
O'Reilly

34
by Skorman, Stuart
Published 2007
Jossey-Bass/Wiley

36
by Bucher, Stefan G.
Published 2006
Rockport Publishers

37
by Sreenivasan, T. P.
Published 2011
Longman

38
by Huntsman, Jon M.
Published 2008
Wharton School Pub.

39
by Huntsman, Jon
Published 2005
Pearson

40
by Wooden, John
Published 1997
McGraw Hill-Ascent Audio