Mufti, Tariq, et al. “DERMATOFIBROSARCOMA PROTUBERANS --A RARE VARI^ANTOF SOFT TISSUE SARCOMA OF SKIN. AN EXPERIENCE OF TWO CASES AT AYUB TEACHING HOSPITAL COMPLEX (ATHC), ABBOTTABAD”. Journal of Ayub Medical College Abbottabad, vol. 13, no. 4, Nov. 2001, https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/4891.