TY  - BOOK
AU  - Yin,Robert K
TI  - Case study research : design and methods
T2  - Applied social research method series
SN  - 0761925538
U1  - 001.8:303.433.2 
PY  - 2003///
CY  - New Delhi
PB  - Sage
KW  - research
KW  - research design
ER  -