St. Martin's Press, 1990
Buku Teks
Church, Peter C., editor
Murmeli Pty Limited, 1999
Buku Teks
World Bank
Oxford University Press for the World Bank, 1993
Buku Teks
Leifer, Michael, author
Routledge, 1995
Buku Referensi
Leifer, Michael, author
Routledge, 1996
Buku Referensi