Luca, Cornelius
New York Institute of Finance, 2000
Buku Teks
Indonesia National Development Information Office, 1996
Buku Teks
by International Monetary Fund
International Monetary Fund, 1999
Buku Teks
U.S. National Committrr for Pacific Economic Corporation, 1994
Buku Teks
Nasution, Anwar
Bank Indonesia , 2000
Buku Teks