1
by Leipziger, Danny M.
Published 1993
2
Published 1991
3
4
Published 1995
5
by Ellison, Herbert J.
Published 1989
6
Published 1994
7
Published 1992
8
by Dobson, Wendy
Published 1994
9
by Fauziah Mohamad Taib
Published 2006
10
Published 1994
11
by Balassa, Bela A.
Published 1991
12
by Chow Peter C.Y.
Published 1993
13
by Ziegler, Charles E.
Published 1993
14
Published 1992
15
by Musgrave, Richard Abel, 1910-
Published 1994
16
Published 1995
17
by Hammer, Jeffrey S.
Published 1995
18
Published 1990
19
20
Published 1999