Brown, Lawrence D., author
Business Publications, 1987
Buku Teks
Saunders, Anthony, author
McGraw-Hill, 2001
Buku Teks
Rutherford, Brian A., author
Sage Publications India Pvt Ltd, 2000
Buku Teks
McGlynn, Daniel R., author
John Wiley & Sons, 1980
Buku Teks
Nagrath, I. J., author
Tata McGraw-Hill, 1980
Buku Teks