Buku Klasik
Durrance, Joan C., author
[American Library association, ], 2005
eBooks
Kohn, Karen C., 1978, author
Rowman & Littlefield, 2015
Buku Teks
Box, John Fisher
John Wiley & Sons, 1978
Buku Teks
Rashelle S. Karp, editor
[American Library association, American Library association], 2002
eBooks