RAMYA CHELLAMMAL MUTHUSAMY, and SREEDEVI DHARMAN. MDS. “USE OF ALOE VERA IN THE TREATMENT OF ORAL LICHEN PLANUS-A SYSTEMATIC REVIEW”. International Journal of Pharma and Bio Sciences, vol. 7, no. 1, Mar. 2016, pp. 146-52, https://ijpbs.net/index.php/journal/article/view/4850.