TY  - BOOK
AU  - Das,N.G.
TI  - Statistical methods
SN  -  9780070263505
U1  - 310 
PY  - 2012///
CY  - New Delhi
PB  - McGraw Hill Education
KW  - Sociology
KW  - Statistics
KW  - পরিসংখ্যান
ER  -