TY  - BOOK
AU  - Kothari C R
AU  - Gaurav Garg
TI  - Research methodology: methods and techniques,3rd ed
SN  - 9788122436235
U1  - 300.18 
PY  - 2017///
CY  - London
PB  - New Age International (P) Limited, Publishers
KW  - research design,sample survey,data collection
ER  -