Schnitzer, Martin C.
Contemporary government and business relations / Martin C. Schnitzer
Honghton Miffn, 1987
 Buku Teks
Contemporary business law : principles and cases / Ralph C. Hoeber...[et al.]
by Ralph C. Hoeber ... [and others]
McGraw-Hill, 1982
 Buku Teks
Martin Basiang
The contemporary law dictionary / Martin Basiang
Red & White Publishing, 2009
 Buku Referensi
Boone, Louis E.
Contemporary business
Dryden Press, 1996
 Buku Teks
Boone, Louis E.
Contemporary business
Dryden Press, 1990
 Buku Teks