Suriyaarachchi, Nnadhasena උමංදා විචාරය - S.Godage Publisher Colombo 2016 - 80p 1 - 2023-12-18 ISBN: 978-955-30-7435-5 Nat. Bib. No.: 0005399 Nat. Bib. Agency Control No.: SUR Universal Decimal Class. No.: 491.483