1
Published 2008
2
by Dear
Published 2006
3
by Lloyd
Published 1991
4
5
by LaRouche
Published 1992
6
Published 2004
7
by Brown
Published 2007
8
by Walliman
Published 2006
9
by Soames
Published 2003
10
by Soames
Published 2003
11
Published 1990
12
by Ritzer
Published 1992
13
14
by Lloyd
Published 1991
15
Published 1992
16
Published 1993
17
by Schwandt
Published 1997
18
Published 1992
19
by Pickover
Published 2008
20
by Wickramasinghe
Published 2010