1
by Landau
Published 1990
2
by McDowall
Published 1994
3
by Butani
Published 1986
4
Published 1992
5
Published 2000
6
Published 1997
7
by Muhammad Idris Saleh
Published 1994
8
by Rohani Ab. Ghani
Published 2002
9
by Lammens
Published 1921
10
by Shwadran
Published 1959
11
by Black
Published 2001
12
13
Published 1993
14
by Ritchie
Published 1993
15
16
Published 2004
17
by Lundahl
Published 1992
18
by Shindler, 1946-
Published 1991
19
Published 1996
20