1
by Walker, Denis
Published 1990
2
by Hobert, Ingfried
Published 2001
3
Published 1991
4
by Kwok, Man-Ho.
Published 1994
5
Published 2000
6
7
by King, Norman.
Published 1987
8
Published 2009
9
Published 1980
10
11
by Nicholas, Margaret
Published 1986
12
13
by Youngson, Robert.
Published 1996
14
15
by Ladew, Donald P.
Published 2006
16
by Hakim, George.
Published 1982
17
by Hui, Joshua.
Published 1990
18
by Wilkins, Richard C.
Published 1991
19
by Biddulph, Steve
Published 2007
20
by Kaufman, Ron
Published 2000