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Investigating the social world : the process and practice of research
Schutt, Russell K., (2012)
Feminist methods in social research
Reinharz, Shulamit, (1992)
Schutt, Russell K., (2009)
Fuzzy-set social science
Ragin, Charles C., (2000)
Redesigning social inquiry : fuzzy sets and beyond
Ragin, Charles C., (2008)
Knowledge and interests in the study of the modern world-system
Ragin, Charles C., (1985)