Wilson, Thomas, author
Macmillan, 1965
Buku Teks
Jones, Joseph Marion
Pergamon Press, 1965
Buku Teks
THe OPEC fund for International Development
New York : THe OPEC fund for International Development, 1998,
Buku Referensi
Nairobi: The United Nations Centre for Human Settlements (Habitat), 1991, 1991
Buku Referensi
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2002
UI - Skripsi (Membership)