1
by Hartle
Published 2004
2
3
by Payne
Published 1990
4
5
6
Published 2007
7
by Porter
Published 1984
8
by Cordesman
Published 1988
9
by Cordesman
Published 1993
10
11
by Basrur
Published 2008
12
by Jafarzadeh
Published 2007
13
14
by Utgoff
Published 1990
15
by Arnold
Published 1995
16
17
18
by Cordesman
Published 1993
19
by B. A. Hamzah
Published 1991
20
by Alexander
Published 1995