Rajapaksha, R.M.D ජීව විද්යාව - Author Publisher Panadhura 2019 - 205p 1 - 2023-11-17 ISBN: 978-955-44728-8-4 Nat. Bib. No.: 0006647 Nat. Bib. Agency Control No.: RAJ Universal Decimal Class. No.: 570