Johnson, Janet Buttolph, 1950-
CQ Press, 2012
Buku Teks
Jonathan Berger, Gabe Turow, editor
Routledge, 2011
Buku Teks
Barker, Chris
John Wiley & Sons, 1994
Buku Teks
Connaway, Lynn Silipigni
Libraries Unlimited, 2017
Buku Teks
Allen, T. Harrell
Praeger, 1978
Buku Teks