Ueda, Masato, Mpu Kanoko, Santoso Cornain, Mochtar Hamzah, Evert Poetiray, Joedo Prihartono, Yoshiyuki Ohno, and Masamitsu Ichihashi. “Molecular Pathological Changes Induced by Ultraviolet Light During the Development of Skin Cancer”. Medical Journal of Indonesia 9, no. 2 (April 1, 2000): 118-22. Accessed July 4, 2022. http://mji.ui.ac.id/journal/index.php/mji/article/view/664.