Kelly, Francis J.
Warner Book, 1986.
Buku Teks
Usman Chatib Warsa, author
Faculty of Medicine University of Indonesia, 2001
Artikel Jurnal
Scales, Pat R., author
[American Management Association, ], 2009
eBooks
Baumbach, Donna J. (Donna Jean), 1948-, author
American Library association, 2006
eBooks
Norman, Sandy, author
Library Association Publishing, 1996
Buku Referensi