Artikel Jurnal
Robertson, Deborah A., author
American Library Association, 2005
eBooks
Robertson, Deborah A., author
[American Library association, ], 2005
eBooks
Insel, Paul M., author
McGraw-Hill, 2012
Buku Teks
San Diego : Elsevier Press, 2007,
Majalah, Jurnal, Buletin