Kortmann, C.A.J.M.
Kluwer Law International, 2007
Buku Teks
Heldeweg, Michiel A
Wolters Kluwer Law & Business, 2012
Buku Teks
Thomas, R.L.
Kluwer law and Taxation Publishers, 1988
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Gould, William B., IV
MIT Press, 1982
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Twomey, David P.
South-Western Pub, 1985
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