Chamberlin, Marry W.
Guide to art reference books.
American Library Association, 1959
 Buku Referensi
Turbo C : reference guide
Borland International, 1988
 Buku Referensi
Katz, William A., 1924-
Your library : a reference guide
Holt, Rinehart and Winston, 1979
 Buku Teks
Ronan, Jana Smith
Chat reference: a guide to live virtual reference services
Libraries Unlimited, 2003
 Buku Teks
Indonesia taxation 2002: a reference guide
editor, Gunadi
Multi Utama Publishing, 2002
 Buku Teks