Ulrich, William M., author
Yourdon Press , 1997
Buku Teks
Stephen Harris, Virginia Andrerson, Glen Banner, Valerie Bloch, Barbara Bouton, Forrest Haouletts, Anthony Keller, April D. Sessions, Dan L. Sessions, Rob Tidroew, editor
NRP, 1993
Buku Referensi
Iwan Ariawan, author
Elex Media Komputindo, 1990
Buku Teks
Holzner, Steven, author
Ufuk Publishing Group , 2009
Buku Teks
Attridge, Catherina M., author
McGraw-Hill, 1983
Buku Teks