Beattie, C. N.
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Buku Teks
Williams, David
Sweet & Makwell, 2000
Buku Teks
Terra, Ben J.M.
Wolters Kluwer, 2008
Buku Teks
edited by Graeme S. Cooper
IBFD publication BV, 1997
Buku Teks
Pinto, Carlo
Kluwer Law International, 2003
Buku Teks