1
Published 1990
2
by Kahn, David, 1930-
Published 2000
3
by Jackson, Robert, 1941-
Published 1991
4
Published 2003
5
Published 2002
6
by Aguilar Camin, Hector, 1946-
Published 1993
7
by Davison, Julian
Published 2007
8
9
by Yong, Mun Cheong
Published 2003
10
11
Published 1994
12
13
Published 1995
14
15
by Gorst, Anthony
Published 1997
16
by Deng, Francis Mading, 1938-
Published 1989
17
Published 1986
18
by Maung Maung, U, 1920-
Published 1990
19
by Hoogbergen, Wim S. M.
Published 1990
20
by Shambaugh, David L.
Published 1991