Bombuwala, K.Karunaratne, V.Ranawana, K.B.Weerasooriya, A.Wijesundara, S.De Silva, E.D.2016-06-202016-06-201998Proceedings of the 54th Annual Sessions of the Sri Lanka Association for the Advancement of Science:p.206https://dl.nsf.gov.lk/handle/1/23332ChemistryARG/96/C/004FR 1173, FR 1262, FR 1175T