Tohutoro APA (7th ed.)
Creswell, J. W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Sage.
Tohutoru Kātū Chicago (17th ed.)
Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Los Angeles, EUA: Sage.
Tohutoro MLA (9th ed.)
Creswell, John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. Sage.
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