Bloomberg, Marry
Libraries Unlimited, 1985
Buku Teks
Intner, Sheila S.
[American Management Association, ], 2008
eBooks
American Library Association, 2018
Majalah, Jurnal, Buletin
Gorman, Michael
Libraries Unlimited, 1990
Buku Teks
Gorman, Michael
Libraries Unlimited, 1990
Buku Teks SO