1
by Adelman
Published 2008
2
by Clark
Published 1984
3
by Taylor, Mark C
Published 2007
4
by Mantin
Published 1993
5
by Tibawi
Published 1976
6
by Voll, 1936-
Published 1994
7
Published 1990
8
by Critchley, 1960-
Published 1992
9
10
by Ahmed
Published 1995
11
by Voll, 1936-
Published 1994
12
by Engdahl
Published 1993
13
by Vadillo
Published 1991
14
by Glain
Published 2004
15
by Bennabi
Published 1991
16
17
by Dziewanowski
Published 1993
18
by Cooper
Published 1989
19
Published 2000
20
Published 2008