Kemeny, John G., author
John Wiley & Sons, 1967
Buku Teks
Pereira, Feranndo C.
CSLI (Center for the Study of Language & information), 1987
Buku Teks
Brand, Kolman W., 1933-, author
Kent Publishing, 1986
Buku Teks
Kemeny, John G., author
John Wiley & Sons, 1981
Buku Teks
Grant, Clive, author
Prentice-Hall, 1989
Buku Teks