TY  - BOOK
AU  - Creswell,John W.
TI  - Research design : qualitative, quantitative, and mixed methods approaches
SN  - 9781452226101
AV  - H 62 C923r
PY  - 2014///
CY  - Los Angeles: 
PB  - SAGE, 
KW  - Social sciences
KW  - research
KW  - methodology
KW  - statistical methods
N1  - Includes bibliographical references and index
ER  -