Millis, Harry A., author
McGraw-Hill, [date of publication not identified]
Buku Teks
Borjas, George J., author
McGraw-Hill, 2010
Buku Teks
Reynolds, Lloyd G., author
Prentice-Hall, 1959
Buku Teks
Meyers, Frederick H., author
Richard D. Irwin, 1951
Buku Teks
Sultan, Paul
N.Y. Henry Holt , 1959
Buku Teks
Yoder, Dale, author
McGraw-Hill, 1950
Buku Teks