Wickramasinghe, S., S. Sumithrarachchi, A. Rumy, and R. Jayasinghe. “Prevalence of Tobacco and Areca-Nut Use and Awareness of Its Harmful Effects Among Non-Academic Staff at Faculty of Dental Sciences, University of Peradeniya”. Asian Pacific Journal of Cancer Care, Vol. 6, no. 4, Nov. 2021, pp. 425-8, doi:10.31557/apjcc.2021.6.4.425-428.