Liliana Calderon-Benavides, editor
Springer, 2012
eBooks
Doyle, Lauren B., author
John Wiley & Sons, 1975
Buku Teks
Ellis, David, author
Library Association Publishing, 1996
Buku Teks
by Munjiah Nur Saadah, Rigga Widar Atmagi, Dyah S. Rahayu, Agus Zainal Arifin
Institut Teknologi Sepuluh Nopember Surabaya, Faculty of Information Technology, Department of Infromatics Engineering, 2013
Artikel Jurnal
Muller, Meinard, author
Springer, 2007
Buku Teks