Gaya APA
Creswell, John W.. (2003).
Research design: qualitative, quantitative, and mixed methods approaches (2).
Thousand Oaks, California:
SAGE Publications Inc..
Gaya Chicago
Creswell, John W..
Research design: qualitative, quantitative, and mixed methods approaches.
2
Thousand Oaks, California:
SAGE Publications Inc.,
2003.
Text.
Gaya MLA
Creswell, John W..
Research design: qualitative, quantitative, and mixed methods approaches.
2
Thousand Oaks, California:
SAGE Publications Inc.,
2003.
Text.
Gaya Turabian
Creswell, John W..
Research design: qualitative, quantitative, and mixed methods approaches.
2
Thousand Oaks, California:
SAGE Publications Inc.,
2003.
Print.