edited by D.C. Fokkema ... [and others]
Kluwer , 1978
Buku Teks
R.W. Lee
Clarendon Press, 1953
Buku Teks
Kortmann, C.A.J.M.
Kluwer Law Internasional, 2000
Buku Teks
edited by Sanne Taekema
Boom Juridische Uitgevers, 2004
Buku Teks SO
Harris, Phil
Weidenfeld and Nicolson, 1993
Buku Teks SO