Madura, Jeff
Introduction to business
South-Western College, 2001
 Buku Teks
Glos, Raymond E.
Introduction to business
South-Western Publishing, 1947
 Buku Teks
Hastings, Paul G.
Introduction to business
McGraw-Hill, 1974
 Buku Teks
Cunningham, William H.
Introduction to business
South-Western, 1984
 Buku Teks
Pride, William M.
Introduction to business
South Western Cengage Learning, 2012
 Buku Teks SO