Yayasan Proklamasi, Centre for Strategic and International Studies, 1985
Buku Teks
by International Monetary Fund
International Monetary Fund, 1999
Buku Teks
AEEMTRC, 1997
Buku Teks
Tsuru, Shigeto
New York Institute of Pasific Relations 1950
Buku Teks
Woytinsky, W.S., author
Twentieth Century Fund, 1953
Buku Teks