Rafi, S., U. Iftikhar, Z. Rani, and I. Hussain. “Comparison of Efficacy and Safety of Topical Hydroquinone 2% and Oral Tranexamic Acid 500 Mg in Patients of Melasma”. Journal of Pakistan Association of Dermatologists, vol. 27, no. 3, Mar. 2018, pp. 204-13, https://www.jpad.com.pk/index.php/jpad/article/view/1112.