1
by Hartwig, Robert L.
Published 1995
2
by Huber, David Miles.
Published 1987
3
by Alkin, E. G. M.
Published 1989
4
by Bernard, Robert.
Published 1990
5
by Hodges, Peter.
Published 1996
6
by Lyver, Des.
Published 1995
7
by Kindem, Gorham Anders.
Published 1997
8
by Lenk, John D.
Published 1995
9
10
Published 1991
11
by Chua, Yew Chian.
Published 1977