Meegalle, S.K.Kumar, V.Karunaratne, V.2016-06-202016-06-201986Proceedings of the 42nd Annual Sessions of the Sri Lanka Association for the Advancement of Science:p.163https://dl.nsf.gov.lk/handle/1/23298ChemistryARG/85/C/010FR 0521, FR 0811T, FR 0236