Parker, Elizabeth, author
Librarry Association , 1999
Buku Teks
Penn, Ira A., author
Gower, 1998
Buku Teks
Hamilton, Byron R., author
McGraw-Hill, 2013
Buku Teks
editor-in-chief, Craig Glenday
Officially Amazing, 2013
Buku Referensi
editor-in-chief, Craig Glenday
Officially Amazing, 2014
Buku Referensi