Kartikasari, Diah Shinta, Puguh Riyanto, Retno Indar Widayati, Asih Budiastuti, Diah Adriani Malik, Muslimin, and Hardian. 2023. “The The Effectiveness of Topical Cysteamine in Treating Melasma: A Systematic Review and Meta-Analysis”. Journal of Pakistan Association of Dermatologists 33 (4):1469-84. https://www.jpad.com.pk/index.php/jpad/article/view/2317.