1
by Lee
Published 1986
2
by Keith
Published 2005
3
Published 1976
4
5
6
7
8
by Saw
Published 2006
9
by Kua
Published 2007
10
Published 2007
11
by Neo
Published 2007
12
Published 1986
13
by Tan Tai Yong
Published 2008
14
15
16
by Bucknill
Published 1927
17
by Loh
Published 2009
18
Published 2008
19
20
by Lim
Published 2009