Pemadasa, Alawaththagoda මැදි විදුහල් විප්ලවය = madi widuhal wiplawaya - Medi Widuhal Adi Sisun, 1994. - 99p.; 21cm ISBN: 955-95515-8-2 Subjects--Topical Terms: Secondary Education Dewey Class. No.: 373.2 / PEM