Vithana, Shantha Kumara ඇමේසන් ගවේෂණ - Rathsara Publisher Gampaha 2017 - 189p 1 - 2023-12-05 ISBN: 978-955-694-055-8 Nat. Bib. No.: 0006758 Nat. Bib. Agency Control No.: VIT Universal Decimal Class. No.: 891.483