APA aipamena

Creswell,John W. (2011). Research design: Qualitative, quantitative, and mixed methods approaches (3rd.). Sage.

Chicago Style aipamena

Creswell,John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd. New Delhi: Sage, 2011.

MLA aipamena

Creswell,John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd. Sage, 2011.

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