Kalansuriya, C.M.Pannila, A.S.Sonnadara, D.U.J.2015-07-062015-07-062015-06Journal of the National Science Foundation of Sri Lanka, 43(2):p.135-140https://dl.nsf.gov.lk/handle/1/19685enNoise levelRoad traffic noiseTraffic compositionVehicle noiseTraffic composition and variability of road traffic noise levels in the vicinity of Colombo, Sri LankaArticle