Weerakoon, W.M.R.K.; Jayantha, K.; Ubhayachandra, E,G.(Jaffna University International Research Conference (JUICE-2012), University of Jaffna, Sri Lanka, 2012)
Jayantha, K.; Weerakoon, W.M.R.K.; Fernando, W.D.C.; Jayawardhana, W.M.A.M.(2nd International Conference on Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2014)
Jayawardhana, W.M.A.M.; Weerakoon, W.M.R.K.; Jayantha, K.; Karunarathne, K.A.N.M.(2nd International Conference on Social Sciences, Faculty of Social Sciences, University of Kelaniya, Sri Lanka, 2014)