Pramanada, Polgaswaththe Thero පර්යේෂණ නිබන්ධ අත්පොත - S.Godage Publisher Colombo 2014 - 200p 1 - 2024-01-29 ISBN: 978-955-30-5316-9 Nat. Bib. No.: 0006277 Nat. Bib. Agency Control No.: PAR Universal Decimal Class. No.: 330