Myrdal, Gunnar, 1898-
Obyektivitas penelitian sosial = Objectivity in social research
LP3ES, 1984
Buku Teks SO
Myrdal, Gunnar, 1898-
Obyektivitas penelitian sosial = Objectivity in social research
LP3ES, 1988
Buku Teks
Link and match penelitian dan pengembangan pelayanan kesejahteraan sosial: Social welfare services research and development's link and match
Artikel Jurnal
Axtell, Guy, 1957-
Objectivity
MA Polity Press, 2016
Buku Teks SO
Nurul Zuriah
Penelitian tindakan (action research) dalam bidang pendidikan dan sosial
Lembaga Penelitian Universitas Muhammadiyah Malang, 2001
Buku Teks