Praeger , 1987
Buku Teks
edited by Jennie K. Lincoln and Elizabeht G. Ferris
Westview Press, 1984
Buku Teks
edited by Jennie K. Lincoln and Elizabeth G. Ferris
Westview Press, 1984
Buku Teks
Bussani, Mauro
Cambridge University Press, 2003
Buku Teks
United Nations Centre for Human Settlements (Habitat), 1991
Buku Referensi