Shweta Shrivastava, Shruti Singh, Kamal Kachhawa, Rajesh Gaur, Divya Agrawal, and Sanjay Kumar. “Study of Oral Premalignant and Malignant Lesions in a Tertiary Care Teaching Centre of North India”. International Journal of Health and Clinical Research, vol. 5, no. 1, Jan. 2022, pp. 141-4, https://www.ijhcr.com/index.php/ijhcr/article/view/3963.