21
by Buzan
Published 1984
22
by Bono
Published 1991
23
by Danaraj
Published 1964
24
by Endicott
Published 1970
25
by Winstedt
Published 1961
26
by Azmi Aziz
Published 2002
27
by Ainon Mohd
Published 1996
28
by Turkington
Published 1999
29
by Ainon Mohd
Published 1995
30
by Bono
Published 1990
31
by Bono
Published 1991
32
by PEALE
Published 1992
33
34
35
by Ainon Mohd, 1950-
Published 1996
36
by Rozman Hj. Din
Published 2000
37
by Maxwell
Published 2002
38
by Ainon Mohd
Published 1999
39
by Abdul Rahman Aziz
Published 1997
40
by Wainwright
Published 1993