Pickard, Alison Jane, author
Facet Publishing, 2007
Buku Teks
Stewart, David W., author
Sage, 1984
Buku Teks
Connaway, Lynn Silipigni, author
Libraries Unlimited, 2017
Buku Teks
edited by Mivhael D. Myers, David Avison
Sage, 2002
Buku Teks
McNeill, Patrick, author
Routledge, 1990
Buku Teks