TY  - GEN
AU  - Patri, Digambar
AU  - Patri , D . N .
TI  - Statistical methods
SN  - 8127219746
U1  - 519.5 
PY  - 1994///
CY  - Ludhiana
PB  - Kalyani Publisher
KW  - RESEARCH METHODS
KW  - STATISTICAL METHODS
ER  -