Gaya APA
Creswell, John W. (2012).
Educational Research: Planning, conducting and evaluating quantitative and qualitative research (4).
America:
Pearson.
Gaya Chicago
Creswell, John W.
Educational Research: Planning, conducting and evaluating quantitative and qualitative research.
4
America:
Pearson,
2012.
Text.
Gaya MLA
Creswell, John W.
Educational Research: Planning, conducting and evaluating quantitative and qualitative research.
4
America:
Pearson,
2012.
Text.
Gaya Turabian
Creswell, John W.
Educational Research: Planning, conducting and evaluating quantitative and qualitative research.
4
America:
Pearson,
2012.
Print.