De Silva, N.Perera, R.Mendis, L.2016-01-142016-01-141995The Ceylon Medical Journal, 40(2)pp.64-65https://dl.nsf.gov.lk/handle/1/20746Medical sciencesStereptococcus pneumoniaeMicrobiologyAntibiotic sensitivityPharmacologyEmergence of penicillin resistant pneumococci in Sri LankaArticle