Creswell, J. W., & Creswell,David J. (2023). Research design: Qualitative, quantitative, and mixed methods approaches (6th.). Sage.
Chicago-čujuhus (17. p.)Creswell, John W., juo Creswell,David J. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 6th. Los angeles: Sage, 2023.
MLA-čujuhus (9. p.)Creswell, John W., juo Creswell,David J. Research Design: Qualitative, Quantitative, and Mixed Methods Approaches. 6th. Sage, 2023.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.