Sadeepa ජීව විද්යාව : biology 2000- 2018. - Sadeepa : Colombo ; 2011. - 350 p ; 24 cm . 01 - 2024-10-22 ISBN: 55661040394904 Nat. Bib. No.: 0006932 Nat. Bib. Agency Control No.: SAD Universal Decimal Class. No.: 540