1
2
3
4
Published 2003
5
by Ramlah Adam, Datuk, Dr.
Published 2003
6
by Corry
Published 1954
7
Published 1956
8
by Hara
Published 1997
9
by Ghazali Shafie, Tan Sri
Published 2001
10
11
Published 1985
12
by Golomb
Published 1978
13
by Firth
Published 1966
14
by Saunders
Published 1979
15
by Rabushka
Published 1973
16
by Blythe
Published 1969
17
by Sim
Published 1963
18
by Jomo Kwame Sundaram
Published 1986
19
by Ryan
Published 1971
20
by Gullick
Published 1987