Sloane, Arthur A., author
[Publisher not identified], 1972
Buku Teks
Reynolds, Lloyd G., author
Prentice-Hall, 1982
Buku Teks
Meyers, Frederick H., author
Richard D. Irwin, 1951
Buku Teks
Budd, John W., author
McGraw-Hill, 2005
Buku Teks
Lovejoy, Laurence C., author
Aleander Hamilton Institute, 1962
Buku Teks