Haque, Anwar Ul, Hajra Farooq, Maryam Sharif, and Sidra Chaudhary. “Fine Needle Aspiration Cytology of Pigmented Dermatofibrosarcoma Protuberance (Bednar Tumor) & It’s Pathogenesis”. International Journal of Pathology (November 20, 2018): 116–121. Accessed April 8, 2025. https://jpathology.com/index.php/OJS/article/view/249.