Dyfyniad APA

Creswell, J. W. (1994). Research design: Qualitative and Quantitative Approaches. Sage.

Dyfyniad Arddull Chicago

Creswell, John W. Research Design: Qualitative and Quantitative Approaches. London: Sage, 1994.

Dyfyniad MLA

Creswell, John W. Research Design: Qualitative and Quantitative Approaches. Sage, 1994.

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