Gaya APA
Creswell, John W.. (1994).
Research Design: Qualitative & Quantitative Approaches .
California:
Sage Publications.
Gaya Chicago
Creswell, John W..
Research Design: Qualitative & Quantitative Approaches.
California:
Sage Publications,
1994.
Texts.
Gaya MLA
Creswell, John W..
Research Design: Qualitative & Quantitative Approaches.
California:
Sage Publications,
1994.
Texts.
Gaya Turabian
Creswell, John W..
Research Design: Qualitative & Quantitative Approaches.
California:
Sage Publications,
1994.
Texts.