TY  - BOOK
AU  - Creswell, John W
TI  - Research Design: qualitative, quantitative, and mixed methods approaches 
SN  - 9788132107484 (pbk.)
U1  - 001.42 CRE 
PY  - 2009///
CY  - New Delhi
PB  - Sage South Asia
KW  - Research Methodology
KW  - Statistical methods
KW  - Research Design
ER  -