1
by Abusharaf, Rogaia Mustafa.
Published 2002
2
Published 1987
3
Published 1989
4
Published 1991
5
6
Published 1976
7
8
by Glazebrook, G. P. de T.
Published 1950
9
by Smith, Brian H, 1940-
Published 1990
10
Published 1993
11
Published 2003
12
by Cossolotto, Matthew
Published 1991
13
by Lipset, Seymour Martin
Published 1990
14
15
Published 1997
16
Published 2002