Shamim, Thorakkal. “PERIPHERAL OSSIFYING FIBROMA OF ORAL CAVITY: HISTOPATHOLOGIC DIFFERENTIAL DIAGNOSES”. Journal of Ayub Medical College Abbottabad, vol. 24, no. 3-4, Dec. 2012, pp. 210-1, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/2095.