Sannwald, William W., author
[American Management Association;, ], 2009
eBooks
Givoni, Baruch, author
John Wiley & Sons, 1998
Buku Teks
Public Libraries Group of the Library Association, 1987,
Buku Referensi
Khan, Ayub, author
Faced Publishing, 2009
Buku Teks
Diberardinis, Louis J., author
John Wiley & Sons, 2013
Buku Teks