Gunawardhana, D.N.T.; Weerasooriya, W. A.; Kodikara, R.C.(Department of Library and Information Science, Faculty of Social Sciences, University of Kelaniya,Sri Lanka., 2017)
Kumara, A.G.R.P.; Suraweera, S.A.D.H.N.(Department of Library and Information Science, Faculty of Social Sciences, University of Kelaniya,Sri Lanka., 2017)