edited by A.J. Walford
Library Association, 1981
Buku Referensi
Joreskog, Karl G., author
Scientific Software International Inc., 1996
Buku Teks
Yates, Rochelle, author
Library Professional Publications, 1986
Buku Teks
Ronan, Jana Smith
Libraries Unlimited, 2003
Buku Referensi
Hall, John W., author
University of Michigan Press, 1954
Buku Teks