by Perera, W. P. T. A., Prematilaka, P. H. K. L. A., Haseena, M. H. A., Athapaththu, A. H. L. C. M., Wijesinghe, M. R.
Published in Ceylon journal of science (15.12.2021)

by Athapaththu, AHLCM, Wickramasinghe, D, Somachandra, MGMC
Published in Journal of the National Science Foundation (06.10.2020)