Athapaththu R.B ප්රථමාධාර අත්පොත : - Gunasena : Colombo ; 2011. - 297p ; 22cm . 01 - 2024-05-03 ISBN: 955211053 Nat. Bib. No.: 0009670 Nat. Bib. Agency Control No.: ATH Universal Decimal Class. No.: 610