Herath, H.M.T.B.Kumar, N.S.Karunaratne, V.2016-06-202016-06-201986Proceedings of the 42nd Annual Sessions of the Sri Lanka Association for the Advancement of Science:p.150-151https://dl.nsf.gov.lk/handle/1/23286ChemistryARG/84/C/004FR 0926T, FR 0964T