Reference services in the virtual library Judy E.Myers
 Artikel Jurnal
Kern, M. Kathleen, author
Virtual reference best practices: tailoring services to your library
[American Management Association, ], 2009
 eBooks
Ronan, Jana Smith, author
Chat reference: a guide to live virtual reference services
Libraries Unlimited, 2003
 Buku Teks
Reference services and technical services : interactions in library practice
edited by Gordon Stevenson and Sally Stevenson
The Haworth Press , 1984
 Buku Teks
Ronan, Jana Smith
Chat reference : a guide to live virtual reference services / Jana Smith Ronan
Libraries Unlimited, 2003
 Buku Referensi
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