Sloane, Arthur A., author
[Publisher not identified], 1972
Buku Teks
Reynolds, Lloyd G., author
Prentice-Hall, 1998
Buku Teks
Reynolds, Lloyd G., author
Prentice-Hall, 1959
Buku Teks
Nolan, Dennis R.
West Publishing Company, 1979
Buku Teks
Reynolds, Lloyd G., author
Prentice-Hall, 1982
Buku Teks