Koulen, Ingrid, author
Foris Publications, 1987
Buku Teks
Thomas, R.L.
Kluwer law and Taxation Publishers, 1988
Buku Teks
Meer, S.W. Van Der
W.E.J. Tjeenk Willink, 1973
Buku Teks
F. Damian Leo
Kluwer, 1978
Buku Teks
Warendorf, H.C.S.
Kluwer Law and Taxation Pub., 1988
Buku Teks