Haugen, Edward B.
John Wiley & Sons, 1980
Buku Teks
Harr, Milton Edward, 1925-
McGraw-Hill, 1977
Buku Teks
Fine, Terrence L., atuhor
Pearson Prentice Hall, 2006
Buku Teks
Mott, Robert L., author
2006
Multimedia
Mosteller, Frederick, author
ITB Press, 1988
Buku Teks