Yates, Rochelle
A librarian's guide to telephone reference service
Library Professional Publications, 1986
 Buku Teks SO
Gilbert, Wilfred C.
The Legislation reference service a brief sketch
The Library of Congress, 1952
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Bacchus, William I.
Inside the legislative process: the passage of the foreign service act of 1980
Wesview Press, 1984
 Buku Teks SO
Pritchett, Jennifer, 1946-
Providing reference service in church and synagogue libraries
Church and Synagogue Library Association , 1987
 Buku Teks SO
Service perspectives for the digital library remote reference services
 Artikel Jurnal