1
by WILSON
Published 1999
2
by COHEN
Published 2001
3
by NOFSINGER
Published 2001
4
by KOPPEL
Published 2000
5
by STEENBARGER
Published 2003
6
by ABDULLAH Ahmad Badawi
Published 2003
7
by Covey
Published 2004
8
by Colvin
Published 2008
9
by Branson
Published 2007
10
by Sparrow
Published 2006
11
by Hill
Published 2008
12
by Maxwell
Published 2008
13
by Koch
Published 2007
14
by Maxwell
Published 1995
15
by Maxwell
Published 2001
16
by Trump
Published 2009
17
18
by Hill
Published 2008
19
by Wilkinson
Published 2010