Examinations department Biology : past papers qestion & answers - Sadeepa : Colombo ; 2014. - 600 p ; 24cm . 01 - 2024-09-11 ISBN: 9789556615685 Nat. Bib. No.: 0010442 Nat. Bib. Agency Control No.: BIO Subjects--Topical Terms: Past paper Universal Decimal Class. No.: 620