TY  - BOOK
AU  - Yin, Robert K
TI  - Case study research: design and methods (5th. edition)
SN  - 9781452242569
AV  - H 62 Yin 
PY  - 2014///
CY  - London
PB  - SAGE Publications
KW  - RESEARCH--METHODOLOGY
KW  - CASE STUDY RESEARCH
ER  -