Gunasekara, Saman Pushpa අන්තර්ජාතික සංවිධාන 2 - S.Godage Sha Shodarayo Colombo 2015 - 216p 1 - 2023-10-16 ISBN: 978-955-30-6284-0 Nat. Bib. No.: 0005116 Nat. Bib. Agency Control No.: GUN Universal Decimal Class. No.: 001