Croft, W. Bruce
Search engines: information retrieval in practice
Pearson, 2010
 Buku Teks
Ortega, Jose Luis
Academic search engines : a quantitative outlook
Chandos, 2014
 eBooks
Information access through search engines and digital libraries
edited by Maristella Agosti, W. Bruce Croft
Springer, 2008
 Buku Teks
Berry, Michael W.
Understanding search engines: mathematical modeling and text retrieval
Society for Industrial and Applied Mathematics, 2005
 eBooks
Alfred
Visual quickstart guide : Search Engine for the World Wide Web
Peachpit press, 1999
 Buku Teks