Creswell, John W.

Research Design : Qualitative, Quantitative, and Mixed Methods Approaches / John W. Creswell. - 4th ed. - New Delhi : SAGE Publications, c2014. - xviii, 190 p. :

9789353287351 9781452226101 (pbk.)


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

300.721 / CRE/R