Artikel Jurnal
edited by Jim E. Cole, James W. Williams ; translated by Andy Pujiriyanto
The Haworth Press, 1992
Buku Teks
Leong, Carol L. H.
American Library Association, 1989
Buku Referensi
Alan Tan Khee Jin; Azmi Sharom
Marshall Covendish Academic, 2006
Buku Teks
Artikel Jurnal