1
2
by Kinzley
Published 1991
3
by Whitley
Published 1992
4
by Randlesome
Published 1990
5
by Trompenaars
Published 1993
6
7
by Brannen
Published 1993
8
9
by Backman
Published 2001
10
by Kavaliauskas
Published 2011
11
by Jackson, 1952-
Published 2011