Creswell,John W. (2011). Research design: Qualitative, quantitative, and mixed methods approaches (3rd.). Sage.
Chicagoスタイル(17版)引用形式Creswell,John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd. New Delhi: Sage, 2011.
MLA(9版)引用形式Creswell,John W. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 3rd. Sage, 2011.
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