OFID (The Opec Fund for International Development, 2005
Multimedia
Mahkamah Konstitusi RI, 2006
Buku Teks
Singapura : Nanyang Technological University, 2005,
Majalah, Jurnal, Buletin
Bank BTPN, 2005
Buku Referensi
by United Nations Human Settlements Programme
EARTHSCAN, 2005
Buku Teks