1
by Mankiw, N. Gregory
Published 2004
2
3
4
by McTaggart, Douglas.
Published 1996
5
by Lipton, P.
Published 1998
6
by Begg, David
Published 1997
7
by Case, Karl E.
Published 1996
8
9
by Lipsey, Richard G.
Published 1992
10
by Sloman, John
Published 1999
11
by S. Husin Ali
Published 1981
12
by Spenceley, G. F. R.
Published 1981
13
Published 1990
14
15
16
17
18
Published 1994
19
by Jackson, George, 1941-1971.
Published 1972
20
Published 1995