Creswell, J. W., & Creswell, J. D. (2018). Research design: Qualitative, quantitative, and mixed methods approaches (5th ed.). SAGE Publications.
Citace podle Chicago (17th ed.)Creswell, John W., a J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 5th ed. Los Angeles: SAGE Publications, 2018.
Citace podle MLA (9th ed.)Creswell, John W., a J. David Creswell. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 5th ed. SAGE Publications, 2018.
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