Design Media Publishing Limited, 2010
Buku Referensi
Dresang, Eliza T., author
[American Library association, American Library association], 2006
eBooks
Intner, Sheila S., author
Libraries Unlimited, 1993
Buku Teks
Ferguson, Elizabeth, author
Library Professional Publications , 1984
Buku Teks
edited by Rae A. Earnshaw, John Vince
Springer, 2008
Buku Teks