Gunasekara,T.A.R.J. G.C.E.(Advanced Level) Chemistry Grade 12 Resource Book Organic Chemistry - Department Of Education Maharagama - 80p 1 - 2024-01-18 ISBN: 987-955-654-745-0 Nat. Bib. No.: 0007788 Nat. Bib. Agency Control No.: GUN Universal Decimal Class. No.: 540