APA-referens (7:e uppl.)

Creswell, J. W. (2013). Research Design: Qualitative , Quantitative & Mixed Methods Approaches (3rd ed.). sage.

Chicago-referens (17:e uppl.)

Creswell, John W. Research Design: Qualitative , Quantitative & Mixed Methods Approaches. 3rd ed. New Delhi: sage, 2013.

MLA-referens (9:e uppl.)

Creswell, John W. Research Design: Qualitative , Quantitative & Mixed Methods Approaches. 3rd ed. sage, 2013.

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