Novrita Andriani, author
Fakultas Ilmu Komputer Universitas Indonesia, 1995
UI - Skripsi (Membership)
Codd, E.F., author
Addison-Wesley, 1990
Buku Teks
Hadi Kusalamwardi, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 1985
UI - Skripsi (Membership)
Cobb, Stephen, author
Windcrest Books McGraw-Hill, 1991
Buku Teks
Wiederhold, Gio, author
McGraw-Hill, 1977
Buku Teks