Ledgrad, Henry, author
Science Research Association, 1981
Buku Teks
Organick, Elliott I., author
Academic Press, 1978
Buku Teks
Sethi, Ravi, author
Addison-Wesley, 1989
Buku Teks
Maurer, Stephen B., author
Addison-Wesley, 1991
Buku Teks
North Holland, 1988
Buku Teks