Disanayaka,Karunathilaka උසස් පෙළ ගිණුම්කරණය = usas peLa ginumkaranaya - Kottawa: Sara prakashana, 1995. - 109p.; 22 cm ISBN: 955-584-218-3 Subjects--Topical Terms: ManagementAccountancy Dewey Class. No.: 657 / DIS