Aluthwala, A.D.Wickramarthne, D.K.S.Wijeratne, R.K.M.J.B.Jayasinghe, M.T.R.2019-02-132019-02-132007Transactions - 2007 Volume I - PART B Technical Papers:p.01-05https://dl-iesl.nsf.gov.lk/handle/1/1071Article