Karunarathna, K.R.M.T. ශුද්ධ ගණිතය 2 = shuddha ganithaya 2 - Ratmalana: Sarvodaya prakashana, 1991. - 228p.; 21cm ISBN: 955-599-035-2 Subjects--Topical Terms: Mathematics Dewey Class. No.: 516 / KAR