Rhyno, Art, author
Libraries Unlimited, 2004
Buku Teks
Dahl, Mark, author
Chandos Publishing, 2006
Buku Teks
Westman, Stephen R., author
[American Library association, American Library association], 2006
eBooks
Roth, Charles H., author
Cengage Learning, 2018
Buku Teks
edited by Uffe Kock Wiil
Springer-Verlag / Wien, 2011
Buku Teks