Research methods in social relations
by Claire Selltiz [and others]
Holt, Rinehart and Winston, 1959
 Buku Teks
Judd, Charles M.
Research methods in social relations
Methuen, 1991
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Research methods in social relations
by Claire Selltiz ... [and others]
Methuen, 1965
 Buku Teks SO
Lamont, Christopher K.
Research methods in international relations
Sage Publications Ltd., 2015
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Bank, Marcus
Visual methods in social research
Sage Publications, 2001
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