TY  - BOOK
AU  - Thilakarathna, R.M.
TI  - ගණිතය:පළමු වසර
SN  - 9552101670
U1  - 372.7 
PY  - 1988///
CY  - Colombo
PB  - Gunasena and company
KW  - Primary Education
ER  -