1
by Yogarajah
Published 2005
2
by Keith
Published 2005
3
4
by Marks
Published 1997
5
6
7
by Che Husna Azhari
Published 1993
8
by Gilmore
Published 1974
9
by Arasaratnam
Published 1958
10
Published 2003
11
by Ho
Published 2003
12
Published 1989
13
Published 2004
14
by Sjostrand
Published 1981
15
by Lewis
Published 1991
16
17
Published 2007
18
by Shan
Published 2003
19
by Shan
Published 2007
20
by Mohd Yusoff Hj. Ahmad
Published 2006