Gaya APA
Creswell, John W.. (1994).
Research Design Qualitative And Quantitative Approaches .
California:
SAGE Publications.
Gaya Chicago
Creswell, John W..
Research Design Qualitative And Quantitative Approaches.
California:
SAGE Publications,
1994.
Text.
Gaya MLA
Creswell, John W..
Research Design Qualitative And Quantitative Approaches.
California:
SAGE Publications,
1994.
Text.
Gaya Turabian
Creswell, John W..
Research Design Qualitative And Quantitative Approaches.
California:
SAGE Publications,
1994.
Print.