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Investigating the social world : the process and practice of research
Schutt, Russell K., (2012)
Constructing social research : the unity and diversity of method
Ragin, Charles C., (1994)
Feminist methods in social research
Reinharz, Shulamit, (1992)
Introduction to social research : quantitative and qualitative approaches
Punch, Keith F., (1998)
Punch, Keith F., (2005)
Developing effective research proposals
Punch, Keith F., (2006)