Groves, Peter J.
Cavendish, 1995
Buku Teks
by George A. Bermann ... [et al.]
West Pub. Co., 1993
Buku Teks
Lasok, Dominik
Butterworth, 1991
Buku Teks
Toth, A. G.
Clarendon Press, 1990
Buku Referensi
edited by D.J. Gijlstra and E.L.M. Volker
Kluwer Law & Taxation, 1983
Buku Teks