Penggayaan APA
CRESWELL, John W. (1994).
Research design qualitative & quantitative approaches .
London:
Sage.
Chicago Style
CRESWELL, John W.
Research design qualitative & quantitative approaches.
London:
Sage,
1994.
Text.
MLA Style
CRESWELL, John W.
Research design qualitative & quantitative approaches.
London:
Sage,
1994.
Text.
Turabian Style
CRESWELL, John W.
Research design qualitative & quantitative approaches.
London:
Sage,
1994.
Print.