1
Published 2008
2
3
by Hargittai
Published 2006
4
by Schweber
Published 2008
5
by Gaarder
Published 2007
6
by Fisher
Published 2008
7
by Brandt
Published 2009
8
by Barber
Published 2007
9
Published 2012
10
by Sealey
Published 2010
11
12
Published 2006
13
by HICKLING
Published 1997
14
Published 2000
15
by BILLINGTON
Published 1996
16
by LOXTON
Published 1994
17
by ROBERTS
Published 2001
18
by SYED ARABI IDID
Published 2005
19
by JAMIESON
Published 1990
20
by Weyn
Published 2008