Mansell, 1992
Buku Referensi
Magrill, Rose Mary, author
American Library Association, 1989
Buku Teks
edited Clare Jenkis; Mary Morley
Gower, 1991
Buku Teks
Thompson, James, author
Clive Bingley , 1982
Buku Teks
American Library Association, 2018
Majalah, Jurnal, Buletin