21
by Daim Zainuddin
Published 2004
22
23
24
by Jones
Published 1994
25
by Christiansen
Published 1996
26
by Ramseyer
Published 1993
27
Published 1995
28
Published 1979
29
by Punnett
Published 1980
30
by Johnson
Published 1980
31
32
by Ogden
Published 1995
33
by Ajami
Published 1993
34
Published 1993
35
by Goldman
Published 1994
36
by Grant
Published 1979
37
by Hailsham of St. Marylebone
Published 1978
38
by Stanley
Published 1988
39
40
by Serbin
Published 1990