Punch, K. F. (2014). Introduction to social research: Quantitative & qualitative approaches (Third edition.). SAGE.
Chicago Style (17th ed.) CitationPunch, Keith F. Introduction to Social Research: Quantitative & Qualitative Approaches. Third edition. Thousand Oaks, California: SAGE, 2014.
ציטוט MLAPunch, Keith F. Introduction to Social Research: Quantitative & Qualitative Approaches. Third edition. SAGE, 2014.
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