Levy, Haim, author
Prentice-Hall, 1988
Buku Teks
Neave, Edwin H., author
Prentice-Hall, 1981
Buku Teks
O`Connor, Dennis J.
Prentice-Hall, 1981
Buku Teks
Lewellen, Wilbur G.
South-Western College Publishing, 2000
Buku Teks
Peterson, Pamela P.
John Wiley & Sons, 2004
Buku Teks