Bainbridge, Stephen M.
UK Edward Elgar Publishing, 2016
Buku Teks
Balekjian, W.H.
Oceana Publications, Inc., 1967
Buku Teks
Paxton, John
Macmillan, 1976
Buku Referensi
Hall, Margaret
Hutchinson's University Library, 1949
Buku Teks
Thomas, R.L.
Kluwer law and taxation Publisher, 1986
Buku Teks