Levine, John R., author
O`Reilly, 1992
Buku Teks
Syandra Sari, author
Fakultas Ilmu Komputer Universitas Indonesia, 1995
UI - Skripsi Membership
Feuer, Alan R., author
Prentice-Hall, 1982
Buku Teks
Valley, John J., author
Sams, 1992
Buku Referensi
Muster, John, author
Microtech Publications, 1989
Buku Teks