000 00602nam a22002297a 4500
015 _a0009503
016 _aDEP
020 _a9789552507243
041 _aSIN
080 _a510
100 _aDepartment of Education :
245 _aසදිශ සංඛ්‍යා පහසුවෙන් උගනිමු :
260 _aDepartment of Education :
_bMaharagama;
_c2022.
300 _a64 p; 22cm.
_b01
310 _a2024-03-25
365 _b70.00
852 _aL
999 _c7620
_d7620