Department of Commerce Faculty of Science and Technology ව්යාපාර අධ්යයනය බහුවර්ණ ප්රශ්න - National Institute of Educaional Maharagama 2019 - 132p 1 - 2023-11-06 Nat. Bib. No.: 0008435 Nat. Bib. Agency Control No.: DEP Universal Decimal Class. No.: 330