1
2
by Yu, Li Na
Published 2013
3
by Koh, Joseph K.H.
Published 2014
4
5
by Liu, Zi Zheng
Published 2000
6
by Hamzah bin Ahmad.
Published 1980
7
by Ashton, P.S.
Published 1968
8
by Lees, Shirley.
Published 1994
9
Published 1999
10
by Jatswan S. Sidhu.
Published 1995
11
by Sabihah Osman
Published 1995
12
13
by Liu, Xin Sheng
Published 2004
14
by Crowther, Geoff.
Published 1988
15
by Jones, L.W.
Published 1966
16
by Bartholomew, James.
Published 1990
17
by Crowther, Geoff.
Published 1982
18
by Jones, L. W.
Published 2007
19
by Eaton, Peter
Published 2010
20