CCH Australia Limited, 1980
Buku Teks
Fraine, Harold G.
Richard D. Irwin, 1962
Buku Teks
Vidal, Eduardo
Global Law and Business, 2011
Buku Teks SO
Pakasi, Soepartinah
Airlangga University Press, 1979
Buku Teks SO
Grayson, Leslie E.
John Wiley & Sons, 1981
Buku Teks SO