Moffitt, Michael, author
Simon and Schuster, 1983
Buku Teks
by International Monetary Fund
International Monetary Fund, 1999
Buku Teks
Epping, Randy Charles, author
Vintage books, 1995
Buku Teks
by International Monetary Fund
International Monetary Fund, 1985
Buku Teks
Savage, Donald T., author
John Wiley & Sons, 1977
Buku Teks