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Statistics and data analysis for social science
Krieg, Eric J., (2012)
The design of social research
Ackoff, Russell Lincoln, (1953)
SPSS X user's guide
(1986)
Multilevel statistical models
Goldstein, Harvey, (1995)
The design and analysis of longitudinal studies : their role in the measurement of change
Goldstein, Harvey, (1979)
Comparing U.S. and European Views of University Involvement in Economic Development
Goldstein, Harvey, (2011)