1
by Bush, Robert A. Baruch.
Published 1994
2
by Anthony, Mely Caballero-
Published 2005
3
Published 1997
4
Published 2001
5
by Cheow, Eric Teo Chu.
Published 2006
6
by Gurr, Ted Robert
Published 1993
7
by Adibe, Clement
Published 1996
8
Published 2011
9
by Mendiburu, Marcos
Published 1996
10
by Pierre, Andrew J.
Published 1996
11
by Lewis, Leslie P.
Published 1994
12
13
by Berman, Eric
Published 1996
14
Published 1999
15
Published 1996
16
Published 1996
17
Published 1996
18
Published 1996