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Social research methods : perspective, theory, and analysis
Eckhardt, Kenneth W., (1977)
Social science research methods
Chadwick, Bruce A., (1984)
Implicit assumptions about the object of research in social research methods
Maschewsky, Werner, (1980)
The DELTA chart : an aid to project management
Allen, T. Harrell, (1976)
New methods in social science research : policy sciences and futures research
Allen, Thomas Harrell, (1978)