Creswell, John W,

Research design : qualitative, quantitative, and mixed methods approaches / John W. Creswell. - 3rd ed. - Thousand Oaks, Calif. : Sage Publications, 2009. - xxix, 260 p. ; 26 cm.

Includes bibliographical references (p. 237-245) and indexes.

9781412965569


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

300.72 CRE 2009