Carrithers, Wallace M.
Business information and accounting systems
Charles E. Merrill, 1967
 Buku Teks
Olson, Hope A.
Subject analysis in online catalogs
Libraries Unlimited, 2002
 Buku Teks
Olson, Hope A.
Subject analysis in online catalogs
Libraries Unlimited, 2001
 Buku Teks
Information systems compatibility
edited by Simon M. Newman
Spartan , 1965
 Buku Teks
Baeza-Yates, Ricardo
Modern Information retrieval
Addison-Wesley , 1999
 Buku Teks