Hanson, Ardis
INFOSCIENCE, 2003
Buku Teks SO
Weishar, Peter
McGraw-Hill, 1998
Buku Teks SO
edited by Crang, Mike; Crang, Phil; and May, Jon
Routledge, 1999
Buku Teks SO
edited by Samantha Schmehl Hines, Kathryn Moore Crowe
Emerald, 2017
eBooks
Ettlin, Richard A
The University of chicago press, 1994
Buku Teks SO