1
2
by Polunin, Nicholas.
Published 1960
3
Published 1979
4
Published 2005
5
6
Published 2008
7
Published 1976
8
by Mohd Yahya Mohammed Ariffin
Published 2010
9
Published 2009
10
by Liu, Chang
Published 2010
11
by Teh, Betsy Lay Hong
Published 2011
12
by Sones, Bill
Published 2009
13
Published 2013
14
Published 1973
15
16
by Wong, Pek Wei
Published 2014
17
by Ince, E. L.
Published 1956
18
by Chin, Janice
Published 2008
19
Published 1981
20