Greenwood Press , 1991
Buku Teks
Roberts, Norman, author
Library Association Publishing, 1991
Buku Teks
Anne Mc Kee
Springer, 2012
eBooks
edited by Andrea Wigbels Stewart, Carlette Washington-Hoagland, Carol T. Zsulya
Illinois ALA Editions, 2013
Buku Teks
Corrall, Sheila, author
Library Association, 1999
Buku Referensi