Mouton, Jane S.
Social sciences : problems and orientations
Hague, 1968
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Campbell, Donald T.
Social measurement
Sage, 2001
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Payne, James L.
Principles of social science measurement
Lytton, 1975
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Viswanathan, Madhu
Measurement error and research design
SAGE Publ., 2005
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Goldstein, Harvey
Multilevel models in educational and social research
Charles Griffin, 1987
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