Ponnamperuma, P.(Proceedings of the Undergraduate Research Symposium (HUG 2018), Department of English Language Teaching, Faculty of Humanities, University of Kelaniya, Sri Lanka, 2018)
Ponnamperuma, P.(Proceedings of the Undergraduate Research Symposium (HUG 2019), Department of English Language Teaching, Faculty of Humanities, University of Kelaniya, Sri Lanka, 2019)