Page, Clive, author
Elex Media Komputindo, 1988
Buku Teks
Dyck, V.A., author
Reston, 1984
Buku Teks
Boyle, Thomas A., author
Brooks/Cole, 1985
Buku Teks
Metcalf, Michael, author
Clarendon Press , 1985
Buku Teks
Page, Clive, author
Multi Media, 1985
Buku Referensi