Goyal, R.C., author
Prenctice Hall of India, 1998
Buku Teks
Armstrong, Michael, author
Kogan Page Limited, 1995
Buku Referensi
Yoder, Dale, author
McGraw-Hill, 1958
Buku Teks
Flippo, Edwin B., author
McGraw-Hill, 1984
Buku Teks
Winardi, author
Alumni, 1978
Buku Teks