So you want to do virtual reference? Steve Coffman
Artikel Jurnal
Cole, Rodney
So you want to take physics : a prepatory course
Saunders College, 1993
Buku Teks
Fournies, Ferdinand
Why customers don't do what you want them to do: 24 solutions to overcoming common selling problems
McGraw-Hill, 2003
Buku Teks
Lancaster, F. Wilfrid
If you want to evaluate your library
The Library Association, 1988
Buku Teks
Lancaster, F. Wilfrid
If you want to evaluate your library
Uninersity of Illinois, 1993
Buku Teks