TY  - BOOK
AU  - Chopra, J. K.
AU  - Jha , V. N. Dr
TI  - Unique quintessence of statistical analysis graphs and diagrams: For UPSC/PCS civil services examination 
SN  - 818357131X
PY  - 2008///
PB  - Unique pub
KW  - Competitive Exam Guide
ER  -