Lawal, Ibironke O., author
Chandos Publishing, 2009
Buku Teks
Bell, Steven J, author
American Library Association, 2007
Buku Teks
Routledge, 1995
Buku Teks
Stuart, Kaz, author
Sage Publications, 2015
Buku Teks
Moore, Nick, author
Facet Publishing, 2006
Buku Teks