Le Roy, Michael K.
Research methods in political science : an introduction using MicroCase
Wadsworth and Cengage Learning, 2013
 Buku Teks SO
Craig, James R.
Methods of psychological research
Saunders, 1986
 Buku Teks SO
Le Roy, Michael K.
Research methods in political science : an introduction using micro case
Wadsworth, 2009
 Buku Teks SO
Johnson, Janet Buttolph, 1950-
Political science research methods
CQ Press, 2012
 Buku Teks SO
Good, Carter V.
Methods of research educational, psychological, sociological
Appleton Century Crofts, 1954
 Buku Teks SO