Goyder, Joanna
Oxford Univesity Press, 2009
Buku Teks
Ritter, Lennart
Kluwer Law International, 1991
Buku Teks
edited by D. J. Gijlstra and D. F. Murphy
Kluwer, 1984
Buku Teks
Cunningham, James P.
Kogan Page, 1973
Buku Teks
Bellamy, C. W.
Sweet and Maxwell, 1978
Buku Teks