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