Aftab, E., E. Khan, F. Anil, and R. Vinjhar. “Assessment of Effects of Areca Nut in the Development of Oral Sub-Mucous Fibrosis Amongst Nursing Students”. Journal of Liaquat University of Medical & Health Sciences, vol. 18, no. 04, Jan. 2020, pp. 301-6, http://121.52.154.205/index.php/jlumhs/article/view/232.