Paust, Jordan J.
St. Paul Minn, 2000
Buku Teks
Collins, Lawrence
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
Ouali, Abdelhamid El
Springer, 2012
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