TY  - BOOK
AU  - Lal Das D K
TI  - Designs of social research
SN  - 9788170339847
U1  - 300.72 
PY  - 2015///
CY  - Jaipur
PB  - Rawat
KW  - Research Methodology Social Sciences
KW  - Social Research
KW  - Social Sciences
ER  -