Valley, John J.
Sams, 1992
Buku Referensi
Rochkind, Marc J.
Prentice-Hall, 1988
Buku Teks
Foxley, Eric
Addison-Wesley, 1985
Buku Teks
Fiedler, David
Sams Publishing , 1993
Buku Teks
Syandra Sari
Fakultas Ilmu Komputer Universitas Indonesia, 1995
UI - Skripsi (Membership)