1
by LANDES
Published 1999
2
by LIBERMAN
Published 2000
3
by FRIDSON
Published 2000
4
by DAVIS
Published 2000
5
Published 1988
6
by Lackey
Published 2005
7
by Robinson
Published 2009
8
by Lau
Published 2008
9
by Khoo
Published 2008
10
by Kiyosaki
Published 2005
11
by Biggs
Published 2008
12
by Gray
Published 2008
13
by Blanchard
Published 1998
14
by VOGL
Published 1996
15
by Piketty
Published 2014
16
by Hughes
Published 2014
17
by Ahmad
Published 2014
18
by Lynch
Published 2008
19
by Fisher
Published 2009
20
by Pilling
Published 2018