Mathes, J.A.P.Karunasinghe, A.W.J.Costa, S.Gunawardhana, H.D.2016-06-202016-06-201994Proceedings of the 50th Annual Sessions of the Sri Lanka Association for the Advancement of Science:p.257https://dl.nsf.gov.lk/handle/1/23327ChemistryAnalysis of poly aromatic hydrocarbons including benzo (a) pyrene in particulate matter from vehicular exhaust emissionsARG/89/C/009FR 0506, FR 0969T