Creswell, John W.

Research Design : qualitative, quantitative, and mixed methods approaches / by John W Creswell. - 4th ed. - New Delhi : Sage, c2014. - xviii,260p. : ill. ; 24 cm.

Includes index.

9789353287351


Social sciences--Research--Methodology.
Social sciences--Statistical methods
Social service--Research--Methodology

300.721 / CRR