Terra, Ben J.M.
Wolters Kluwer, 2008
Buku Teks
Sage Publications, 2010
eBooks
edited by Simon Bell, Murray Simpson, Liisa Trvainem, Tuija Sievanen, Ulrika Probsti
Taylor and Francis, 2009
Buku Referensi
The Law Book Company, 1997
Buku Teks
Abondolo, Daniel
Curzon, 2001
Buku Referensi