University of Texas Press,
Majalah, Jurnal, Buletin
edited by David Baker and Wendy Evans
Emerald, 2017
eBooks
edited by Lorcan Dempsey, Derek Law and Ian Mowat
Library Association Publishing , 1995
Buku Teks
Marcell Dekker, 1979
Buku Referensi
Lowell, Mildred Hawksworth, author
The Scarecrow Press, 1968
Buku Teks