Lowenfeld, Andreas F.
Buku Teks
Paust, Jordan J., author
St. Paul Minn, 2000
Buku Teks
Collins, Lawrence, author
Clarendon Press, 1994
Buku Teks
Arnaud Nuyts, editor
Kluwer Law International, 2008
Buku Teks
edited by Gordon Blanke, Renato Nazzini
Wolters Kluwer / Law & Business, 2012
Buku Referensi