Karunatilake,C P A An introduction to Principles of economics Part 2 - Central Bank of Sri Lanka Colombo 01 2018 - 429p 1 - 2023-11-01 ISBN: 978-955-575-361-6 Nat. Bib. No.: 0008575 Nat. Bib. Agency Control No.: KAR Universal Decimal Class. No.: 160