TY  - BOOK
AU  - Singh, Jaspal 
TI  - Instruments of social research 
SN  - 9788131604298
U1  - 300.72054 SIN(INS)  
PY  - 2011///
CY  - New Delhi 
PB  - Rawat Publications 
KW  - SOCIAL SCIENCES- RESEARCH METHODOLOGY
ER  -