1
Published 1999
2
by Sivachandralingam Sundara Raja
Published 1999
3
Published 1998
4
by Storey, John
Published 1997
5
by Ambary,
Published 1998
6
Published 1988
7
by McNeill,
Published 1994
8
by Hole,
Published 1990
9
Published 1991
10
by Spielvogel, Jackson J.
Published 2000
11
Published 1996
12
Published 2000
13
by Fagan, Brian M.
Published 1997
14
by Renfrew,
Published 2000
15
by Qasim Ahmad
Published 1991
16
Published 1993
17
Published 1997
18
19
Published 1992
20
by Blumenfeld,
Published 1999