Kodithuwakku, D.S.; Jayawardana, Y.W.; Jayawardhana, M.N.; Muhandiramge, K.M.R.R.; Dulani, K.P.K.(Department of Economics, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2016)
Muhandiramge, K.M.R.R.; Jayawardhana, M.N.; Dulani, K.P.K.; Kodithuwakku, D.S.; Kiriella, P.M.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Jayawardhana, M.N.; Dulani, K.P.K.; Muhandiramge, K.M.R.R.; Kodithuwakku, D.S.; Himanshi, H.L.N.(Social Statistics Students’ Association, Department of Economics, University of Kelaniya, 2015)
Kodithuwakku, D.S.(4th International Conference on Social Sciences 2018, Research Centre for Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2018)