Hammer, Bjarne, author
Roads, 2014
Buku Referensi
Harvey, Ross, author
London Bowker Saur , 1992
Buku Teks
Artikel Jurnal
Evalien Suryati, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2008
UI - Tesis (Open)
Robertson, Deborah A., author
American Library Association, 2005
eBooks