Chemistry ugannana “Devruwan Alwis” (AKA “Deiyya”) ge class gihin tiyenne kawuda?
U nan widyathmakawa hithanne kohomada kiyala supiriyatama ugannanawa. Chemistry walata sambanda scientists lage ithihaasa katha widyaathmaka parikshana e wagema karmantha rasayanata awama lankawe tiyena godak...