Peale, Norman Vincent විජයග්රාහී දිවියක පෙරමග = wijayagrahi diwiyaka peramaga - Colombo8; Phan pub, 2005. - 197p. 21cm ISBN: 955-8909-66-1 Subjects--Topical Terms: Psychology Dewey Class. No.: 153.42 / PEA