1
2
by Aburdene
Published 1993
3
by Mishel
Published 1993
4
by Weiss
Published 1990
5
Published 1996
6
by Naisbitt
Published 1990
7
by Nu'man
Published 1992
8
by Peterson
Published 1994
9
10
by Wilson
Published 1993
11
12
by Neubeck
Published 2006