Munasinghe, K. D. පාඨශාලීය ජ්යෙෂ්ඨ උද්භිද විද්යාව = Patashaliya Udbitha widyawa - Colombo : Gunasena, 1959. - 396p.; 19cm Subjects--Topical Terms: Mahinda Ranaweera CollectionChemistry & allied sciences Dewey Class. No.: 540 / MUN