Chamberlain, Neil W. (Neil Wolverton), author
McGraw-Hill , 1980
Buku Teks
Borjas, George J., author
McGraw-Hill, 2010
Buku Teks
Sloane, Arthur A., author
Prentice-Hall, 1977
Buku Teks
Sloane, Arthur A., author
[Publisher not identified], 1972
Buku Teks
Reynolds, Lloyd G., author
Prentice-Hall, 1982
Buku Teks