1
Published 1998
2
3
4
by Dunning
Published 2002
5
6
by Dollar
Published 1993
7
8
9
by Newlin
Published 1994
10
Published 2003
11
12
by Smith
Published 1993
13
by Sklair
Published 1991
14
by Blackwell
Published 1991
15
by Wichterich
Published 2000
16
by Osborne
Published 1990
17
18
by Winiecki
Published 2013