Rajapaksha, R.M.D. උසස් පෙළ ජීව විද්යාව = usas pela giiva vidyaava - Panadura: Author, 2015. - 528p.; 27cm ISBN: 978-955-44728-2-2 Subjects--Topical Terms: BiologyEducation Dewey Class. No.: 570.7 / RAJ