Carter, W. Nick
ADB, 1991
Buku Teks
Carter, W. Nick
ADB, 1991
Buku Referensi
Edited by Graham Matthews; John Feather
Ashgate, 2003
Buku Teks SO
Langan, Joanne C.
Prentice-Hall, 2005
Buku Teks SO
Krisno Nimpuno, editor; Roy Hilman, editor
United Nations Centre for Human Settlements (Habitat), 1998
Buku Referensi