Thilakarathna,Bandara ආර්ථික විද්යාව 2 - Sarasavi Publishers Nugegoda 2017 - 198p 1 - 2023-11-01 ISBN: 978-955-31-1340-5 Nat. Bib. No.: 0008104 Nat. Bib. Agency Control No.: THI Universal Decimal Class. No.: 657.834