Rahmayanti, N. D., A. N. Hidayati, E. Ervianti, and N. Muhdi. “Association of Psoriasis Severity Degree With Self-Esteem, Depression and Dermatology Life Quality Index”. Journal of Pakistan Association of Dermatologists, vol. 30, no. 1, Aug. 2020, pp. 117-2, http://jpad.com.pk/index.php/jpad/article/view/1356.