1
by Mokyr
Published 1990
2
by CRAMER
Published 1997
3
by Khor
Published 2000
4
by Anderson
Published 2005
5
Published 2010
6
Published 2007
7
Published 2006
8
Published 2006
9
by Deakin
Published 2005
10
by Lukman Z. Mohamad
Published 2003
11
Published 2004
12
Published 2004
13
by SHANK
Published 2002
14
Published 2002
15
by Ashworth
Published 2002
16
by LIM HIN FUI
Published 1997
17
Published 1999
18
by GAMBETTA
Published 1993
19
Published 1991
20
by Sowell
Published 1983