1
by Grijpstra
Published 1976
2
3
by Jomo K.S.
Published 2003
4
by Ungku A. Aziz
Published 1975
5
by Mohd. Sohaimi Esa
Published 1999
6
7
Published 1978
8
Published 2004
9
by Ma
Published 1968
10
Published 1979
11
Published 1966
12
13
14
Published 2003
15
16
17
Published 1994
18
by Siew
Published 1968
19
by Yow
Published 2006
20
Published 2006