Johnson, Janet Buttolph, 1950-
Political science research methods
CQ Press, 2012
 Buku Teks
Powell, Ronald R.
Basic research methods for librarians
Libraries Unlimited, Inc., 2004
 Buku Teks
Pickard, Alison Jane
Research methods in information
Facet Publishing, 2007
 Buku Teks
Berg, Bruce Lawrence, 1954-
Qualitative research methods for the social sciences
Pearson, 2004
 Buku Teks
Understanding social research: perspectives on methodology and practice
edited by George Mckenzie, Jackie Powell, Robin Usher
The Falmer Press, 1997
 Buku Teks