TY  - GEN
AU  - CRESWELL, John W.
TI  - Research Design: Qualitative, quantitative, and mixed methods approaches
SN  - 9788132107484
U1  - 300.72 
PY  - 2009///
CY  - Los Angeles
PB  - SAGE Publications
KW  - Social sciences
KW  - Research Methodology
KW  - Research Design
KW  - Statistical methods
ER  -