1
by Grijpstra
Published 1976
2
by Chang
Published 1995
3
by Nidzam Sulaiman
Published 2006
4
5
by Bending
Published 2006
6
by George
Published 1981
7
by Hazebroek
Published 2000
8
9
10
by Davis
Published 1990
11
by Yong
Published 1991
12
by Kedit
13
14
by Khaidir Ahmad, 1962-
Published 1994
15
by Chin
Published 1996
16
by Alattas
Published 1979
17
by Leigh
Published 1974
18
by Roff
Published 1974
19
by Ritchie
Published 1987
20
by Ritchie
Published 1987