TY  - BOOK
AU  - Pradhan, T.P.
AU  - Sharma, R.P.
TI  - New secondary optional mathematics: statistics for class 9 and 10
U1  - 515 
PY  - 1990///
CY  - Kathmandu
PB  - Ratna pustak
KW  - Mathematics;Statictics
ER  -