Piris, Piyasiri තරග විභාග සදහා අභියෝග්යතාව = tharaga viBaaga nisaeka jaya aBiyooggiyathaavaya - Colombo; M. D. Gunasena, 2016. - 188p. 20cm ISBN: 978-955-21-2340-5 Subjects--Topical Terms: IntelligenceGenaral knowledgeIq Dewey Class. No.: 153.9 / PEI