Master guide Publication English model : grade 06 - Master guide Publication : Colombo ; 2010. - 132 p ; 24cm . 01 - 2024-09-05 ISBN: 9789551092931 Nat. Bib. No.: 0010465 Nat. Bib. Agency Control No.: MAS Subjects--Topical Terms: Past pepars Universal Decimal Class. No.: 420