edited by David Stern
Routledge, 2009
Buku Teks
Kane, Laura Townsend, author
American Library association, 2003
eBooks
Morgan, Scott, author
Cambridge University Press, 2006
Buku Teks
Newlen, Robert R., author
Neal-Schuman Publishers, 2006
Buku Teks
Jansen, Ritsert C., author
Cambridge University Press, 2013
Buku Teks