TY  - BOOK
AU  - Singh,S.P .
TI  - Research Methods in social sciences:a manual for desigining qustionnaires / 
SN  - 81-7391-483-4
U1  - 300.072 
PY  - 2002///
CY  - New delhi : 
PB  - Kanishka , 
KW  - Research Methods
ER  -