1
2
Published 1976
3
Published 1957
4
by Goh, Chen Chuan
Published 2001
5
6
by Bassett, John C
Published 1969
7
by Awther Singh
Published 1981
8
by Church, Albert M
Published 1976
9
10
11
12
Published 1972
13
Published 1950
14
by Ryde, Walter Cranley
Published 1956
15
Published 1987
16
Published 1977
17
Published 1969
18
19
by Goitom, Ahferom Angessom
Published 2006
20
by Nasir Iqbal
Published 2006