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