edited by Dennis Swann
Routledge , 1992
Buku Teks
George, Stephen, author
Oxford University Press, 1985
Buku Teks
Eeckhout, Piet
Clarendon Press, 1994
Buku Teks
Scheierling, Susanne M.
The World Bank , 1995
Buku Teks
Shaw, Josephine, author
Macmillan, 1993
Buku Teks