Panditharathna, K. M.; Abeywardana, N. L. E.(8th International Conference on Business & Information ICBI – 2017, Faculty of Commerce and Management Studies, University of Kelaniya, Sri Lanka., 2017)
Perera, W. T. N. M.; Aruppala, W. D. N.(8th International Conference on Business & Information ICBI – 2017, Faculty of Commerce and Management Studies, University of Kelaniya, Sri Lanka., 2017)