TY  - BOOK
AU  - Rao, Digumarti Bhaskara
AU  - Pushpa Latha, Digumarti 
TI  - Achievement in mathematics
SN  - 9788171412785
U1  - 510 RAO 
PY  - 2016///
CY  - New Delhi
PB  - Discovery Publishing House
ER  -